Apparently it's pretty common for people to just add their games to jams even if they weren't made for the jam. I'm assuming this is just to get people to look at their games, but it's pretty rude imo. For example, I could submit a game of mine to every single jam that's active on itch.io right now, because then (I guess) a few people would look at my game.
Anyway I wasn't aware of this back when I made this post.
I don't know if this is what you're asking about, but in short, this was a small announcement to let ppl know that I'm removing these types of submissions from the jam, and why.