Can't say I'm shocked, as I hadn't seen anything worth my time there in ages, but worth removing from your bookmarks in case you'd hoped it would start having decent offers again.
You'd like/comment/otherwise interact with posts/channels on Twitter, Telegram, and maybe some other places (you could also open Lightning channels, I think) for bounties. So you could like a twitter post for 20 sats, or comment on one with a specific word for 50, etc. But eventually, the tasks dropped to like 5 sats for comments and retweets, and half were to dead Tweets anyway. I only really found it late last year, so I missed it in its heyday.
Bittersweet day. Shutting down something you've put countless nights working on is not easy but that's how we learn, grow and make room for what's next.
Sooo next chapter, let's go.
Was the project just not seeing the usage they wanted?
That'd be my guess. I'm sure the Musking of Twitter hasn't helped (especially for any tasks that might've required an API to verify), but it may just be an idea with a limited lifespan.