As a newbie I had a couple of questions about a car I was not used to. It was very helpful when someone answered (what to most here was a no brainer) my questions in a clear manner. So if a person asks a basic question when new here I am all for just simply giving the answer and letting them know where it could have been found if that is the case.
There is really no good reason to treat anyone rudely just because you don't like their car or some statement they made. Correcting or giving an opinion is fine, but going on to personally attack a person is out of line. Jerks need disapline, give it to them. That is one thing lacking in our society: Quick consequences for wrong doing. If their mothers didn't teach them perhaps some small lessons can be learned on line.