Then what's the point for those moving from X to Bluesky?
AFAIK many are moving due to content might be used to train AI models.
Very few people are switching to Bluesky so they don't have their data scraped for AI models. X has become a messy cesspool of spammy ads, toxic comments, and an owner intent on making it his personal echo chamber.
"They'll train an AI on my deeply-valuable thoughts" is the absolute least of my worries about having an account on Twitter.
It's more just about me not wanting to stay in the place I grew up after all my friends moved away, especially after a whole bunch of slightly terrible people moved in next door.
I don't know where you got that idea. People are leaving because they don't like Elon.