When I was a teenager, a stranger at Flinders Street Station gave me the train fare to get home. I never thanked her properly. I never even learned her name. Thirty years later, that moment became a website.
Thankyou.web3 is an archive of short, sincere thank-yous — the ones people never managed to say out loud. You write yours, it gets etched permanently onto Bitcoin, and it stays there: readable for decades, impossible to quietly delete, whether or not the person it's for ever sees it.