Modlog, which includes a site ban—something only admins can do.
The community bans also include communities that aren’t moderated by any instance admins, and some that are only moderated by a single person who likely isn’t aware of actions taken under their community’s name.
Well, the community’s rule is specifically not to make political jokes in the https://lemmy.ml/c/nonpolitical_memes subreddit.
So removing the comment seems acceptable. Banning like this is certainly ridiculous. On the other hand the modlog shows this user “Dasus” to be a serial troll, who got himself banned on many communities.