I built TestiMoney (
https://testimoney.xyz) - a social experiment where posting costs money and your message's value decays over time.
How it works:
- Pay $10+ to post a 180-character message
- Value decays 1-10%/hour (rate increases with viewer count)
- Users can like/dislike to affect value (+/- 5%)
- Super Likes ($1-50) add 100% of payment to value
- Only 100 messages exist at once - lowest value gets archived
Tech: Next.js, Fastify, PostgreSQL, Redis, WebSockets, Stripe
The decay creates an interesting dynamic: popular times mean faster decay for everyone, creating natural pressure on the "market."
I'm curious to see emergent behaviors - will people coordinate? Will whales dominate? Will anyone actually use this?
Built this as a weekend project that got out of hand. Feedback welcome.
