What I know, but in the past didn't take into account, is that text is a pretty ordinary way of communicating - the gurus reckon most of the message we get is in the tone and non verbals, such as body language. Letters on a page, with a few emoticons don't quite stack up.
So, it's easy to give offence here where perhaps none was intended.
On a related point, some grew up with healthy conflict and argument, and aren't bothered by it, or even value it as way to a version of the truth, (that could be me:-) ) and others can't deal with that kind of thing at all. So, we healthy conflict lovers might do well to back off a bit.
Artesian