Just back for a quickie on this, and then I'm off again, along the theme of things getting out of hand again.
The problem with a forum reliant on the written word is that nobody can see your face when you are writing your post. So we can't see if you are laughing, smiling, frowning or boiling with rage! Your mood or feelings do not necessarily translate in the writing. You can therefore write something that could be taken as aggressive, rude, insulting, ambiguous or whatever but it can be misunderstood. Smilies don't often help when the written word is contradicted by a smile at the end which does nothing to lighten the tone.
The reader, as well, has to perhaps bite their tongue before lashing out in response and to read carefully what has been said. Try and get at the true meaning and don't see aggro if there isn't any. It may just be conveying a strongly held view to which they are entitled but to which you are entitled to disagree. Don't try and ram your views down each others throats!
I belong to a target shooting forum and there is NEVER any aggro like this between forum members. Perhaps its because we have to be calm and very deliberate in our shooting. Speed reading and speed writing also lead to errors and misunderstandings!
As everyone keeps saying lets de-stress a bit, lower our blood pressure and hopefully someone won't have a heart attack!