Came here to say this as well. As funny as this would be if it were an accident, just prior to me going scorched earth on my accounts I saw several subreddits in protest that made everyone subscribed to their sub a mod, and confirmed it myself.
It's very likely a subreddit that the person was subbed to and forgot/didn't know they were doing that.
If I read the announcement correctly, that is implemented by a bot with mod privileges that parses comments and takes actions on users' behalf. I don't think it's practical to literally make every user a moderator.
On r/politicalhumor and r/madlads, the answer is yes. But you need subreddit karma to log mod actions. There is a bot running in those subs which facilitates it.
Wish they had gone through with it. The app is just a front-end that sends requests to the server, presumably the server is where authentication happens (otherwise everyone could just pull up dev tools on their desktop and become insta-mods of any sub with a few tweaks). That being said, if it was a server-side bug, then they have a big problem; otherwise it's just little more than a graphical error.
I’m new to Lemmy and trying to learn how everything works. Also yeah I made everyone on r/madlads and r/politicalhumor a mod via the Mod Democracy Bot.