I'm sure by now we know the games being played on site with others coming in thru app using OUR name ..
Maybe the owner can get a tracking system or something that shows up info so they can be blocked or placed on a list that only mods can see an keep record of for future manipulations.Then possibly block ,especially if it's a registered user doing it in a app.

Just a suggestion since many are coming in thru app to start trouble or use others name to cause strife.

Thank you