[quote name='kainzero']My brother said they're from CAG but I couldn't tell.
Are people asking for me games and not even adding me first? What's up with that?[/QUOTE]
Basically the list is designed so instead of having 50 CAGs on your friends list that like fighting games, you have one (CAG Fighter IV). When you wanna have games with fellow CAGers you view the profile of that tag, then view its friends list, and you can see who's on. It just saves clutter on your own friends list.
I added a little thing to the profile to NOT spam invites and only invite people playing a game. Hopefully that makes things a little better. I've personally had good luck and met some pretty cool people through it.