Sorry misunderstood your comment, yeah Threads/Meta is god awful for collecting data wouldn't want to touch them personally
There definitely is money in it for Meta though, just yesterday there was quite a popular post showing the types of data that is available to both users and instance owners. If one wanted to they could use things such as your upvotes and down votes to build a sort of profile about you, your political affiliations, interests etc
Meta isn't just a problem, ad companies can easily set up an instance to start collecting data from other servers
Exactly this, the only real reason that Meta would care about the rest of the Fediverse is free extra content for their users and extra data to exploit
Defederating doesn't stop either one of these things, content is still viewable (defederating only stops other users on other instances being able to comment, vote etc) and the data is still their for the taking
It feels like half the posts/comments at the moment don't understand the way that defederating works