Hell, seems like a decent idea, I can't see anywhere that could go bad, as long as users are aloud to get their Gamertags/Accounts removed from the list if something happens. My Gamertag is RE 5 Addict.
And yeah, I agree if something bad happens, users can request to have their username removed. And I guess I can remove other people's too if there's a problem.
Well my Gamertag is Tehodlzor10 feel free too add me ill play RE5 or Crackdown or Fear of Call of Duty i have a couple other games so feel free too ask and we can play sometime