Normally I’m against premium-only features, and was always against BC-only features/games in the past, but I think this is the one time where a premium-only feature would be warranted. If someone wants to make a crass display name, they should at least fork over $6 to do so. It’ll likely prevent a majority of the bacon haired swastika users we’ve been seeing from happening in the future.
Also, here’s a script that changes users display names to their usernames. Display names are a bad idea but kicking users with custom display names is an even worse idea;
Disable DisplayName script - Resources / Community Resources - DevForum | Roblox