There needs to be actual content rules. TIL worked best when the mods actually adhered to those content rules. Otherwise you just have people posting all kinds of nonsense. Quality is better than quantity
@Chozo if your post is 'TIL A star system exists' and you can't really tell us an interesting fact or piece of information about it, I'd say.. don't write something to be honest or if you really want to write about that thing, try to find something interesting about it to actually submit. TIL on Reddit also has a rule about titles standing on their own. Yes you can expand on topics inside the submission, but people should get something simply from reading your title. A lot of those titles don't really give you anything at all.