If you don't have anything nice to say, don't say anything at all. I was brought up with manners. I have come to find not everyone grew up so privileged. To be honest I don't have very much nice to say, so instead of lowering myself to the bottom feeders of the world and say something that I will regret (because I am brutally honest) I am going to take the high road and keep my mouth shut.
But also... let those motherfuckers know....