God thank you, I swear some people fail to realise just how ActivityPub federation works!
Post something on fedi and you lose effective control over it; for all intents and purposes, it's out there on hundreds of different servers who don't have to respect your deletion requests, and it's never coming back.
And to be perfectly honest, I'm more comfortable with Meta archiving all my shitposts than, I dunno, all the nazis.
For some reason, your link doesn't work.
The second part of your comment doesn't answer my question, nor would "they want our data!!!" explain why Meta would want or need to create an instance in order to get it, or how the "data" (what data? Your posts? The ones that ActivityPub syndicates to hundreds of other servers automatically? Do you know exactly which servers your posts are on at the moment?) of other users on other fedi instances could somehow be "monetised" by them.