It's probably not about the economics of remaining. Twitter's still got way more users than Bluesky.
But the optics of Bluesky are way better than the optics of Twitter, so you get to feel like you're sacrificing something (the larger user base) for your principles, while still having a huge (and engaged) audience.
They get to have their cake and eat it too. Until the crypto bros have their way with the place.
Especially when you have a group that would be ideal for a tabletop gaming server where you could participate locally instead of having to find each other all the time - and it’d be a lot easier to find and vet other community members going forward.
They are looking for the same as tw/ig/fb/etc most of the fediverse doesn't work that way that's why most of the ones that go to mastodon then return to the walled gardens.
The people are just going to what it looks like the image they have of twitter at the beginning not realizing that is going to be a new twitter as soon as most of them have gone to the new twitter.