I think I've given it three or four times, besides to A13, that is.
Usually if you are insulting beyond what I would consider ok, you get it. If you are just plain ignorant, I figure you probably wouldn't know it was bad anyway, so don't bother.
but you have enabled your karma in the profile...isn't "oh I DO like what you have to say...I shall show my sympathy with positive green dots" elementrary school style as well?