It has to be the most irritating thing you can find on here is people demanding "inv plzz" and whatever their long unoriginal gamer tag is. Most people on here do lobbies for free and they don't need to either, the least thing you can do is just join the session yourself (unless it says otherwise). You can't expect the person hosting to invite all of those people himself, it would take forever especially with those people with retarded gamer tags with all those z's and x's and so on. I've seen pages and pages on end of asking for invites when the first page is telling you to join the session, it's crazy. If you don't join the session you have no chance of getting in really.

This is the only thing I can really find annoying and irritates me on these forums.