Problem is, niether ever really cross that line of personal attacks or true trolling. They skirt on the edge: Criticize, criticize, degrade, THEN follow up with "just my opinion" or, even worse, they give a backhanded compliment or a one line "I hope I am wrong and Windows Phone rebounds" kinda comment.
I see they are doing it just to do it. But honestly, they are following the letter of the law even if not the spirit.
We have just enough users who respond to thier posts to keep their pulses going. I am sure everyone is keeping an eye on them. But what can we do?