Reddit Migration

I've used that mechanism as a moderator intentionally.

Some subs just get a lot of low effort, low quality posts, by setting certain automated rules, you can filter out people that don't read any submission instructions. In practice those are nearly always low effort.

A simple example is "set post flair to X before clicking on submit" and if they don't do that, just autoremove the post and tell them why and to contact the mods if they disagree.

Anyone that cares will delete and resubmit correctly. Anyone that doesn't really care will move on to something else.

Truegaming was like that: you had to make a post that fostered a discussion...but you couldn't frame it in any was as something that could possibly be asking readers a question, or imply a demand for reader input.

So, you had to write something that people would reply to and not reply to at the same time...