The platform crossed the milestone last night, and it happened about a month and a half after the 25 million mark. Bluesky still has a long way to go to pass Threads, though; Meta’s platform has more than 100 million daily active users.
[Media: https://bsky.app/profile/bsky.app/post/3lgu4lg6j2k2v]
I don’t think 99% of people who have joined bluesky have any clue what federation is or means. They do know what “not twitter” is however.