You honestly don't realize what have you done wrong?
Do I need to link some unban essays that explain this sort of stuff?
What's up with the attitude? Screw other players, what's important is that WE have "fun"? I believe that the entire community has dedicated a lot of effort of rooting out this sort of behavior, which makes sure that some players are having "fun" (and grinding in the process), while ruining fun for everyone else.
If it was announced in advance and agreed by both teams - than it would be fun. The way it was, it was pure leeching and vulgar display of selfish disregarding of all others.
And when someone criticize this, you post few pics with facepalms. The sad thing is, there are moderators among you, who aren't suppose to be that anymore, if they condone this sort of behavior.