The user interface still very, very, very much like someone who had never played any shooter on any platform might come up with. It annoys me because I like the game, but the entire time I'm playing it I spend more time fighting the amateur UI than fighting the critters.

So I press Ctrl.
Then I pick the Guild invite from some random stranger.
Then I pick decline.
And it puts me in the clan anyway.

No big deal, I press O.
I click the Clan tab.
And I click leave.

Only...
Nobody else's computer updates...
And I continue to see their clan chat as well...