Quote from jerryI really fail to see what problem you have with unregistering a event on a frame. And I beg to differ on the idea that it's more likely to fail than the idea I have seen around here, which either rely on undocumented assertions (that frame receive an event in a particular order that is not random) or that present the user with a confusing interface that make him think that he has a choice where he doesn't.
If you want to notify the user that he has entered a group, then you can do that.
No need to defend your solution, it's perfectly valid and I wasn't intending my comment as an attack. I just prefer checking on the PARTY_MEMBERS_CHANGED event, that's it.