I don't mind it - sometimes they make good points in their rants (although not in the one linked), perhaps html5HTML5? why i<rant>Why I hate your downvotedownvote</rant> would be better?
Arguments are basically well-defined rants. I don't see it as a major problem, and if the rant is a major or threatening, then it is a problem. The one linked to is just too verbose and not well done.