I have followed everyone's opinions on the matter of 'tirades' with much interest, having "lived" on internet groups since the late 90s - and there were many disagreements. I think I have learned a thing or two.
The written word makes arguments seem a lot more harsh, since visual input that can deflect the seriousness of the argument, is missing. Maybe some folks here are not so used to this form of communication - and it worries...