Case Study UI / UX Design Feb 2026 General Assembly · Final Project

Reddit Commerce Layer —
turning discussion into decisions.

An AI-powered shopping layer that lives inside Reddit, converting organic product discussions into transparent, purchase-ready recommendations — without compromising the trust that makes Reddit, Reddit.

RoleSole designer · Research, IA, UI, prototype
ToolsFigma · Proto.io · HTML/CSS
Duration4 weeks · Feb 2026
DeliverablesResearch, persona, journey, hi-fi prototype
Project prompt
Designing a commerce layer within Reddit that converts organic product discussions into personalized shopping experiences while preserving community trust.

Four goals I kept coming back to.

Monetization can't come at the cost of the community. These four goals helped me hold that tension throughout the project.

01

Increase revenue growth

Capture and convert high-intent product discussions into measurable commerce value.

02

Maintain user trust

Keep transparency and clarity high so monetization never undermines user confidence.

03

Protect community integrity

Enhance community discussions without distorting or replacing authentic voices.

04

Platform sustainability

Balance revenue generation with long-term ecosystem health and user retention.

Four interviews to understand how people actually shop on Reddit.

I interviewed four Reddit users about how they research products, what they trust, and where they get stuck — then mapped what they told me into themes.

Interview goals

Understand current product research behavior on Reddit; identify trust signals; surface friction; assess receptiveness to AI summaries and transparent monetization.

4
Participants
10
Questions across 4 themes
Behavior

Tell me about the last product you researched on Reddit. What was your process?

When do you feel ready to actually make a purchase decision?

Trust

How do you decide which comments or users are trustworthy?

What signals make a recommendation feel authentic vs. promotional?

Friction

What frustrates you most when browsing product recommendation threads?

Have you ever felt overwhelmed even after reading multiple opinions?

AI Acceptance

How would you feel if Reddit summarized the top community-recommended products?

What would make this kind of AI feature feel manipulative?

Four patterns kept surfacing across every interview.

Shopping Behavior

Participants use multiple platforms — Reddit, YouTube, Amazon — to triangulate before buying. Reddit is valued as a validation tool because discussions feel authentic and conversational, not like a review site.

Trust & Credibility

Users rely on community signals: upvotes, depth of comments, repeated product mentions. Human-feeling, casual language is the single biggest reason they trust a Reddit recommendation.

Research Friction

Reddit research is rewarding but exhausting. Users read multiple threads to reach confidence, and explicitly asked for condensed summaries of key recommendations.

Monetization & Trust Risks

People are open to monetization — but only if it's transparent and clearly separated from organic recommendations. Poorly labeled sponsored content reads as manipulation and breaks trust.

Key insight

Users want faster ways to extract consensus from community discussions — but transparency and authenticity are non-negotiable.

Meet Daniel — the user the design is really for.

Daniel
Capponi.

Daniel Capponi

32 · Computer Engineer · Seattle, WA

Daniel works at a cloud infrastructure company in Seattle. Outside of work he plans weekend trips for road biking, hiking, and landscape photography — and he relies on Reddit to figure out what gear is actually worth buying.

InterestsOutdoors · Tech · Photography · Coffee
Trusted brandsGarmin · Arc'teryx · Patagonia · Snow Peak
Apps used dailyReddit · Apple Maps · Strava · Instagram
Shopping styleResearches deeply before committing
Frustrations
  • Reddit research takes too long when comparing options
  • Hard to tell which reviews are actually trustworthy
  • Product info is scattered across multiple sites
Needs
  • Upgrade hiking gear and spend more time outdoors
  • Honest opinions from people with real experience
  • A clear read on pros and cons before buying

Two sides of the same problem.

There's a user side and a business side to this — and addressing only one of them wouldn't really solve it.

For Daniel · The User

Daniel relies on Reddit to research and validate upgrades for his hiking gear, trusting authentic, experience-based recommendations from real users.

But insights are fragmented across lengthy discussions, requiring significant time to compare opinions and cross-check information across platforms.

As a result, Reddit does not effectively support him in turning community knowledge into confident purchasing decisions.

For Reddit · The Business

Despite hosting high-intent product discussions, Reddit lacks a structured way to translate community insights into actionable shopping experiences.

Valuable user intent is not captured, limiting Reddit's ability to monetize product discovery while maintaining user trust.

The opportunity sits in the gap: helping users decide faster while opening a transparent revenue channel.

Daniel's current journey — nine steps, a lot of friction.

Mapping the existing flow helped me see where the design could be most useful.

Scenario · Daniel wants to upgrade his hiking shoes
Step
1.Need / Trigger
2.Initial Search
3.Discover Threads
4.Browse
5.Identify Options
6.Cross-Validate
7.Compare
8.Decide
9.Purchase
Quote
"My backpack is worn out, I need an upgrade."
"Let me see what people recommend."
"Okay, lots of people have strong opinions here."
"Lots of great info, but it's scattered."
"These brands keep coming up."
"Which one is actually best for me?"
"I could see both of these options working."
"Let's get this one."
"Done."
Pain points
Unclear needsToo many choices, no direction.
Info overloadToo many threads. Who to trust?
Scattered infoGood info buried in comments.
Time consumingLong threads, no clear consensus.
Still uncertainOptions unclear; what fits me?
FragmentedLeaves Reddit for other apps.
Hard to commitNot enough reviews to validate.
Decision anxietySecond-guessing on Reddit.
External conversionReddit loses the moment.
Emotion
🙂
🤔
😕
😫
🤨
😟
😣
😰
😌

How might we…

Three questions that opened up the design space.

01
How might we structure community recommendations in a way that preserves the authenticity and credibility of Reddit discussions?
02
How might we use AI to condense product recommendations while still allowing users to verify the original community opinions?
03
How might we introduce monetization opportunities without making recommendations feel manipulative or overly promotional?

An AI-powered recommendation layer that identifies high-intent product discussions and summarizes community consensus into transparent, purchase-ready product recommendations.

Five existing patterns I learned from — and what each one didn't quite resolve.

No single pattern in the market does the whole job. I looked at how each one works and tried to bring together the parts that fit.

01
AI Summary

Quick to understand a discussion, but doesn't actually support a clear product decision.

02
Social Commerce

Connects discovery directly to purchase, making the moment faster and smoother.

03
Curated Recommendations

Helpful for guidance, but often feel biased or too promotional.

04
Comparison Tools

Make it easy to evaluate by laying out details side-by-side.

05
Reviews with Context

Trust climbs when you can see who's sharing the review and what their experience is.

Borrowed from Reddit, kept restrained.

Rather than invent a new visual language, the design stays inside Reddit's existing system — same typeface, same orange, same component logic. The work is in the layout, hierarchy, and new patterns added on top.

Typeface
Noto Sans
A B C D E F G   1 2 3 4 5 6 7 8 9 0
Primary color
#FF4500
Accents
#FF5FC2
#FFBF0B
#AEEF0F
#00E2B7

A first version, tested early — and what I learned from one careful walkthrough.

Before committing to a polished prototype, I built a mid-fidelity version of the core flow in Proto.io and walked one participant through a real shopping scenario — researching a new hiking backpack on Reddit. The flow held up, but four small issues surfaced that needed real fixes.

Finding 01 · Affordance

"Reddit Ask" button was unclear

The "Ask" button sat next to the search bar and visually resembled a recording button — the participant wasn't sure whether it acted independently or was part of search.

Finding 02 · Trust

Credibility wasn't visible enough

The participant wanted clearer signals that summaries came from real users — and suggested making the quoted comments tappable so they could read the original source.

Finding 03 · Mis-signal

"…" read as a button

A small "…" element near the AI summary read as interactive but wasn't. A confusing affordance that needed to either do something or disappear.

Finding 04 · Validation

Product cards needed ratings

The participant wanted to see star ratings and review counts on each recommended product to assess credibility faster — currently missing from the initial design.

Method

One moderated test

Participant Lindsey Meisterheim was asked to upgrade her hiking backpack using Reddit, then walked through the full happy path while thinking aloud.

Honest note

Recording lost.

The session recording was lost in transfer — captured detailed notes, but next round, redundant backups go in from the start.

Everything earlier folded into one interactive flow.

The final hi-fi prototype incorporates each piece of testing feedback. Below is what changed between the initial design and this version — and the live prototype follows. Tap through it to see the full flow.

Refinement · 01

"Ask" became "AI Summary"

The button was relabeled and moved into the AI summary surface itself, so its purpose is obvious. No more ambiguity with the search bar.

Refinement · 02

Quotes are tappable now

Every quoted comment opens a bottom sheet showing the original Reddit thread, the author's karma, and the replies — so users can verify the source in one tap.

Refinement · 03

The "…" became a real button

Instead of removing it, the three-dot element was wired up to do what people expected — expand a longer summary view. The affordance now matches the behavior.

Refinement · 04

Star ratings & review counts added

Every product card now carries a star rating and review count alongside the community tags — closer to the validation cues people use elsewhere.

Walking through the flow

The prototype starts on a real-feeling Reddit thread about hiking backpacks, surfaces an AI summary of the conversation, opens into a side-by-side comparison of the top community picks, leads into a product detail page with quoted reviews, and ends with a post-purchase share-back loop that feeds the next user's research.

  • Thread view with an "AI Summary" entry point
  • Summary surfaces consensus and cites real quotes
  • Tappable quotes open the original comment in a sheet
  • Comparison table built from community-mentioned attributes
  • Sponsored items shown — clearly labelled and visually distinct
  • Post-purchase share-back closes the loop with the community
Open full prototype
End of case study

Thanks for reading.
Let's talk.