There may be a correlation there, but I don't see how one causes the other.
The problem is that, if these criticisms are made at all, the handle used to make them is accused of being one of many used by a certain person. It focuses more on the people making the arguments, and less the arguments themselves. Xenon pointed out that this is just a bullying tactic used to attack the critics so they could avoid having to address the issue at hand. If you find out that someone using a handle isn't like those people who are obnoxious and wrong, then that just means they are a new person that you are unfamiliar with, which just brings everything back to square one: What did the person say, and how will you respond to it?