feels like OSS early adopter folks have been trying to leave for years, legal + media people moved to bsky this month and are starting to close their twitter accounts, younger VC / founder type people are trying to stick it out
some of the oss + scifi author crowd has been making it work on mastodon but may come to bsky. (think like charlie stross)
celeb + sports accounts are joining bsky now post-election, and in theory a bunch of users that will jump with them; insta/threads may still win this slice though
rn on bsky there's an early twitter dynamic of like mark hammill following tech journalists