Ah, but I've heard that people are sometimes not receiving invites. Happened with a friend of mine the other day. One other player was talking to him in IRC, and I invited twice with no success. On the third try, I manually typed his name in the search box instead of inviting him from the friend list and the invitation went through and was received. If the other player hadn't been there to tell me that he hadn't received the invite, I might have thought he wasn't by his PC, or either ignoring me.
Don