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Limit
Moral of the story here is this - The way someone says things means just as much if not more than what they are saying. Here more than most places I would imagine, that matters. You've been agreed with on your general point already, it seems the main thing being disputed is your wording/tone.
Seriously though, you ought to calm down. Or not. But just know that it is kind of amusing to some of us (me at least, and if I am amused I am sure others are) that you are in such a huff over this. You're just hurting your own image here by being snippy and that is not suddenly magically going to change because omgz you're right and we are wrong!
But if it is going to bruise your ego that much to admit you were wrong about something (NEVAR! yes I know, you weren't wrong, yada yada, don't bother going there) or to apologize for the possibility that you might have sounded rude even if that is something you personally don't care about...well...then don't. Your choice. But know that people are not going to take what you say seriously because of it. At best they will shake their heads and laugh at the silliness, at worst they will just be offended and not absorb what you might feel is a good point because of being thrown immediately into defensive stance.
Humility is a virtue.