I agree 100%, just because someone pays for a trainer and has problems with it does not give them the right to be abusive towards the CH staff. And it's just my opinion but I believe customers like that should be ignored, it's one thing to request help but quite another to be disrespectful while aggressively demanding help. That's why I don't think it would hurt if CH chose to discontinue business with those kinds of people oppose to incorporating mass punishment which effects us all.
That's my opinion at least.. and I know there's no set date for dawnguards release.. I just hope trainers start getting made once it does release.