I feel like that was a cool and unique enough mark for original subreddit to give it a different vibe than most other communities with similar intent.
It also helps standardizing the titling format just enough to make it less confusing and clearer when reading them. Now that there is a brand new modding team I feel like this could be a good thing to add here
not to my knowledge; if there is, please show me a documentation because I (who may have to do it) am not aware of it
It would probably be possible to enforce this with a bot (with moderator rights) that deletes all posts that don’t match the rule, but I don’t have the resources to operate something like that.