Gotta say I have never seen any of this a single time in any of the 60+ AK/CM runs I have ever done because I party with people from my server (via /sh or in my FC). If you're grouping with people from your community you'll find that they tend to be a bit more respectful because their reputation may actually become known otherwise.

This seems to be a completely different situation if you group via DF, but I avoid DF like the plague for anything end-game related and hated it even while leveling.