I can't remember where I read it, now. I just looked under "Help" and couldn't see it there. I also started the process of creating a game, to see if that was where I saw it, but didn't see it there either..

It isn't an option I myself would choose. But I can see 2 people who are friends, playing a friendly game, might choose the option. I'm sure someone in this situation wouldn't find it foolish or silly at all..
Simply don't use it, and don't sign up for games that use it..