(Wow, I can'y say "say" in my title... )
I have never in my life understood this. I find it ridiculous that we can lavish someone in compliments, but we are expected to keep our mouths shut if we have a less than sunny opinion. What makes it even worse is that people who say this will turn around and say that there is a certain "balance" or something along those lines... yet you can't balance compliments and insults?
Now, I'm not justifying being a complete ass, I'm just curious as to how people can see this as being fair.