In 2023, Bluesky's CTO Paul Frazee was asked what would happen if Bluesky ever turned against its users. His answer:

it would look something like this: bluesky has gone evil. there's a new alternative called freesky that people are rushing to. I'm switching to freesky

That's the same argument people made about Twitter. "If it goes bad, we'll just leave." We know how that played out.