That the argument that people need to introduce friends is incompatible with the claim you guys didn't know who each other were, prior to admitting you were roommates.

When I got introduced to CF the guys that introduced me didn't need to group with me etc. They just showed me how to log on, explained how to move etc and away I went.

Let's also recall that the argument of people busted cheating hell is that they just want to play with their friends.