BuddyPress.org

I’d love to see this thing forked and maintained and agree it would probably be very popular.

It would also be very cool to have a option added in a member’s profile settings to turn on/off the profanity filter while they view the site.

I’ve been using this plugin for a long, long, time to help with both development and member support:

https://wordpress.org/plugins/user-switching/

It’s a very cool little piece of code that might be exactly what you’re looking for.

Hope that helps.