I’ve been using both and I feel more comfortable making quick posts on Bluesky while I feel more comfortable making longer posts on fedi. Might be the post limits though.
As for why people are flocking to Bluesky? Two things IMO:
- Friends - people want to talk to their friends, never mind if the service has less features. It’s why Twitter is still around despite Elon constantly making it a toxic place to use, and the general audience moving away from Twitter seems to like Bluesky. Maybe it’s the familiarity of it as well.
- The audience on the fediverse making average users feel unwelcome. There was a post about Bluesky users being asked why they don’t want to join fedi and some of the reasons include having to abide by unwritten rules that weren’t a thing on the instance they were on, or feeling restricted as if they were posting on LinkedIn rather than the Twitter they once knew. Add to that the very extreme sides of the fediverse and I can see why people would rather join Bluesky, despite the lack of features.