Personally, I want nothing to do with them and I'm not willing to give them the benefit of the doubt. I moved to the Fediverse to get away from all these corpos.
You want a free open source social network. But when people you dont like join it, you hate it. That is not how it works, its not how FREE in FOSS works.
Meta can join, they can do whatever they want. It literally the point of this social network. If you dont like it, then go to a social network that is not FOSS, but is heavily moderated, because that is what most of you really want.
"Freedom" can be used to justify lots of really bad stuff. Meta has too much money to be trusted, they WILL fuck the Fediverse up eventually for more profit on the first chance they get (and people with lots of money always get those chances).
And it's not just about morality and the fucked up stuff that's happened on Meta, Iike the Cambridge Analytica scandal. I stopped using Facebook years ago because of the low quality of the content being posted there. And last week I logged back in to sell some stuff and oh boy, the content managed to get even worse.
I don't want growth just for the sake of growth. We don't need big corporations getting involved.