!deshittification@thebrainbin.org
Made it because reversal should still be possible, and although there’s !enshitification@slrpnk.net, other than its “positive monday” rule, the deshittification aspect isn’t covered by their rules/guidelines (nothing against their community, though).
I made the community pretty open-ended, so I guess both count.
Also, on using alternatives being a type of deshittification, I’d say even that with competition around, the original or more prevalent tool needs to seek ways to be better as to not lose market share.
Edit: added a third question to the description, so I think it should be clearer