What 14 Years of a Code-Download Site Taught Us About Demand in the AI Era

Background

I run Zuidaima (“Most Code”), a Chinese source-code sharing site that launched in 2012. At its peak it felt like a small economy: upload code, earn points, spend points to download, cash out points. About 537k registered users, nearly 10k shared projects, and millions of behavioral events later, search traffic dried up-and so did uploads. Recently I finally sat down with the production data (registrations, views, downloads, completed payments through mid‑2026) to answer a question I’d been avoiding: Do people still want downloadable student/side-project code-or did AI make that whole category irrelevant? Short answer: demand didn’t vanish. It got thinner, more seasonal, and more about “can I ship/demo this?” than “can I download a zip?” The big picture: not dead, just an order of magnitude smaller.

Registration Decline

Annual new registrations (selected years):

Completed real-money top-ups (unique users who finished WeChat Pay, not just opened a QR code):

• 2018: ~8.3k
• 2022: ~2.2k
• 2025: ~130

Same story for views and downloads. This isn’t a cliff; it’s a long decline. Seasonality is still real-June 2024 spiked vs Aug/Sep, classic graduation / coursework season in China. If you operate a niche learning marketplace, this pattern may look familiar: SEO-fed UGC economies shrink when the search pipe shrinks.

Funnel for Users Who Joined After 2020 (~149k people)

How I read this:

• Intent is still “find code.” Almost 4 in 5 new users view something. They’re not accidental tourists.
• Half bounce between view and download. The unresolved question is fitness + runnability: Is this right for my assignment? Will it start?
• Once they download, it’s usually a priced item. The points marketplace still works.
• ~7% convert to real money. That’s a durable niche, not a growth rocket.

Important caveat: most “payment” events were unpaid QR sessions (status=0). Counting every payment intent as revenue would inflate payers by ~3-4×.

Later cohorts are colder:

• 2020 cohort: ~43% downloaded, ~8.8% completed a top-up
• 2024 cohort: ~30% downloaded, ~5.9% topped up
• 2025 cohort: ~27% downloaded, ~5.6% topped up

What People Actually Pay For

Track A - Cheap Frontend “Snacks” (Volume)

Top paid downloads are still flooded with:

• HTML/H5 mall & admin templates
• login pages, food/travel static sites
• cute animation / confession-page demos

Price band: mostly 1-5 points. High volume, low willingness-to-pay for code itself. This layer is exactly what AI coding tools commoditize first.

Track B - Complete Coursework Systems (Value)

What looks closer to “someone will top up for this”:

• Spring Boot / SSM admin systems (jobs board, bookstore, hotel, property, warehouse)
• projects that mention docs / thesis-style writeups
• Spring Boot + Vue full-stack demos

Typical prices: 9-15 points, sometimes more. Keywords that keep showing up: admin, management, student, mall, Spring Boot, Vue.

What’s almost absent from paid charts:

• Pure ML / “AI project” novelty packs
• Trendy stacks with weak demo value

Users aren’t shopping for the frontier. They’re shopping for something they can present. One-line product thesis from the data: Use cheap templates for acquisition; make money on runnable, documentable full systems. If you “modernize,” amplify Track B-don’t invent another Track A.

Supply Died Before Demand Finished Dying

New shared projects / distinct authors:

Among post‑2020 signups, only ~619 people ever became authors. Classic death spiral: less traffic → fewer downloads/top-ups → creators stop earning → uploads stop → catalog ages → SEO and conversion get worse. Ironically, paid charts still feature years-old HTML/JSP/early Spring Boot repos. The inventory still prints some cash. The factory floor is empty.

The Underrated Job-to-be-Done: Make It Run

Among 2024+ new-user views, a troubleshooting blog post about importing/running downloaded Java projects ranks near the top-above many source packages. That single ranking told me more than a dozen brainstorms:

• Friction after download is the product.
• “One-click preview” and “paid help to deploy” aren’t side quests; users already vote with clicks.
• In a world where AI can scaffold a Next.js app in minutes, the zip file is less scarce than a working demo and a human (or agent) who unblocks you.

Practical Takeaways (for Builders of Similar Products)

• Stop worshipping UV. Instrument graduation-season: preview → pay → assisted setup.
• Curate 30-50 admin / Spring Boot coursework apps with short-lived Docker previews and runbooks.
• Keep cheap HTML templates as bait, not as the P&L center.
• Win back creators before chasing new signups. A 7% pay rate with empty shelves is still zero.
• If you test a $1-$2 impulse SKU, sell “complete system + docs + run guarantee”, not “another generic starter repo.”

Closing

The old loop was beautiful in its simplicity: share → earn points → spend points → withdraw. It worked when search brought endless students and creators could see money move. What’s broken now isn’t mainly the loop-it’s distribution, delivery (still “here’s a zip”), and creator incentives. The data doesn’t say “shut it down.” It says: Evolve from a code download site into a coursework-grade app delivery surface-previewable, explainable, and help-to-run. Keep the points economy if it still clears. Put AI in the middle as infrastructure, not as a chatbot sticker on a dying homepage.

If you run an aging developer community or digital goods marketplace, ask yourself the same question our charts forced on us: Are your users buying files-or buying a result they can show on Friday?

Method Notes (for the Pedants)

• View / download / pay mapped from first-party event types in our legacy Java app.
• Paid download = non-author download of a project with price > 0 (current price field; historical price edits can add minor noise).
• Cash payers = payment events in a completed status only.
• Category labels on titles are rule-based heuristics for trend-reading, not a taxonomy product.

I’d love comments from folks running Gumroad-style code packs, course marketplaces, or any UGC site that peaked on SEO. What does your view→pay funnel look like in 2025-2026?