langurmonkey: If all printers were determined not to print anything till they were sure it would offend nobody, there would be very little printed. - Benjamin Franklin
It is too bad, most Americans today, do not believe in this quote. My point is, sometimes you have to offend people to say what you want to say, properly. It seems crazy that you desire a forum without nastiness.
I didn't say you weren't free to say and offend, by all means do so, don't be surprised when people react, though, that is their way of responding, whether it's good or bad, it's a tool and they'll use it.
There's also useful ways of debating or having a discussion and ways that are a pure waste of time, the latter vastly outnumber the former, and unsurprisingly are more commonly encountered.
FWIW, I've popped off at people well before I should have at times, I simply take it as a learning experience.
In the end, if you're sure you've communicated well, then there's no reason to sweat the eventual response, good or bad. If you don't know that, then you should work on it, it builds character and is a useful skill, both.