Gregory's Server> you can follow anyone regardless of which platform they’re on
Meanwhile I'm prohibited from following @Moon@shitposter.club
Note that I'm not arguing for following some nazi on Poa.st. The shitposter.club is a wholesome instance with a sensible moderation policy. But one of your censor minions put it on the list alongside freespeechextremist.net and there's no appeal process.
The heavy-handed, capricious, and unaccountable censorship is big problem at Mastodon.