Hello!
The stuff regarding what they did do not mean much, it's their actions and how you treat other players that I am warning you about. Nobody really cares about loot you replace in 5 levels, but they care about getting griefed.
We spent good over two hours in BFD. I was getting annoyed by the SW: shield spam and tried to tell him to stop shield me before every fight (you get no rage from hits that are absorbed), I think he got mad for me trying to correct his gameplay, I don't know he never spoke a word. After a rough run and some completely unnecessary whipes we are finally clearing the thrash before Aku'mai. Then one of these guys ninjapull the boss while we are fighting turtles, and then they kicked the other priest that joined as DPS and the hunter, you can see in the chat that he is not very happy. They kept me in the group for some reason, and the priest that was outside the party was forced to heal me instead (he saved us alot of times by switching to healing because Bloodishorde dident do anything). Then, they tried to steal the sword they knew I wanted.
So there you have it, stay away from these guys.