For me personally, it's because it's been so aggressively shoved in my face in every context. I never asked for it, and I can't escape it. It actively gets in my way at work (github copilot) and has already re-enabled itself at least once. I'd be much happier to just let it exist if it would do the same for me.

It's still stuck! I

I've tried the import function as well, but it doesn't seem to have moved since I uploaded my .zip file! It's been stuck here for a few hours.

I'm really interested in trying pixelfed, but the 15 character username limit is really restrictive. I don't want to sign up with a name that doesn't match the handle I already use on instagram and other related places. They have a github issue for it, but it there's no indication of when it might actually be changed.