Perhaps the cliche caused confusion.
Correctness first, then delivery. We simply believe that being correct is not a free pass to being an ass or "virtually" spitting on someone with your response.
In fact, perhaps this will make it more clear. We don't encourage anything that pertains to the person. Complete and utter deconstruction of misinformation is not a problem - expanding that line of discussion to comment on the purity of the members mother is not okay.
There have been many times in the past when I have completely destroyed someones argument. However, I don't say anything about their lack of intelligence or otherwise.
@pH: Admittedly on a personal level, I do put a lot of value in delivery. I've seen some smart people through school and work who will tell someone something that is correct, but are sooo poor at explaining it, the information is lost. In much the same way, being a prick while correcting someone can just lead to an argument or anger, where the point of being correct can easily be lost.
More importantly, what is acceptable in the professional world? We may be a bunch of hobbyists, but that doesn't mean we have to act like them.
