Letting someone piss you off in-game is really not going to help your CF experience. Making other people enjoy the game less by full saccing/looting them is always an asshole choice. I mean, I can understand why some people do it, I just think the game would be better off if it wasn't an option.
From an immortal perspective, gear circulation is nice and all, but one of the biggest killers of my motivation to play the game is to have all my hard work gathering gear just poofed in a second because I decided to go balls to the wall and stay for a close fight, or something similar.
I just find that after a full loot, the game becomes closer to Heroes of Newerth (where trash-talking, degrading others, and being a complete asshole is the norm), and I really ain't interested in a CF like that. HoN gets away with it, because losing doesn't really affect you in your next game: CF, however, getting assholed by someone sets you back a lot of time and effort, and it just feels pointless to try and get all that stuff back when you know eventually some other asshole is gonna fuck you again after you die.
I agree with Daurwyn's point:
You all say full looting is part of the game and people should leave if they don't like it.
We say people leaving because they don't like it is really one of the bigger problems here.