I never post anything controversial...only upbeat or informative.
I'm a bit of a coward too, especially after getting banned! LOL
Once in a great while I'll poke a toe into the religious wars...usually due to one poster in particular who says the same lies month after month, year after year.
But if you post once...you have to keep up the conversation. And I just don't have the self-confidence that is required for heated arguments! Heh...
Some of 'em are entertaining to watch, though...