(Copied from the thread on /c/Quark's)
I quit as the top mod of /r/StarTrek in 2021 in protest against Reddit's platforming of vaccine disinformation subreddits. Then in 2023 during the API protest, myself and several of the remaining mods (including mods from /r/Risa and /r/DaystromInstitute) started StarTrek.website.
The consensus I've seen on Lemmy has been largely "we don't need to spread the word about our open platforms because Reddit will do something stupid again and there will be another protest and Lemmy will be promoted there". So I hope we can take this as a lesson that we can't rely on platforms being shitty in order to switch society over to open standards. We need to do our best to make Lemmy/Mbin/Piefed good as well as known.
I haven't seen much arguing, it is unquestionably centralized and for profit. There truly is nothing unique about it.
I'm not an expert with the AT protocol but it really seems like what Dorsey and co have made is a super complicated protocol that (under specific conditions that cannot exist in the real world), has the potential to be federated in a meaningful way. That way they can steal all the talking points of the fediverse and muddy the meaning of words.
There are also a lot of people on Fedi who will seek out threads like these to explain how line 2532 of the AT protocol handbook explains how having 100% of users on a single server is actually decentralized but I'm sure they're all authentic accounts.