This is easier said than done. The one thing all online communities suffer from is you cannot truly perma-ban people on the internet, making moderation a bottom

This is easier said than done. The one thing all online communities suffer from is you cannot truly perma-ban people on the internet, making moderation a bottomless pit. Only chance you have is basically charging people to sign up, but then you will also drive away 99,99% of your target audience.