twitter has hundreds of millions of users and 7,000 (less now, unfortunately) employees, not all of which have production access. i don't know anyone at twitter, so them accessing my data would need to be a random choice from the whole userbase. they'd need to evade internal checks (which, however weak they are, are infinitely stronger than the average fediverse instance). could it happen? could i be eaten by an escaped zoo leopard during my morning walk?

having my data "read" by a non-sentient advertising model, while irritating, is nowhere near the same as having it read by a human being. that is a false equivalence.

i made no argument about the absolute merit of twitter vs the fediverse. this is simply a downside of small communities that people excitedly migrating to the fediverse with little understanding of how it works or experience with its predecessors will soon run into—twitter is neutral ground, on mastodon you might be arguing with the instance admin's friend and find yourself retaliated against. anyone who used a forum or IRC in the 90's/00's knows what i'm talking about.