As such, "slut" would appear to be an apt description and, thus, a legitimate use of the word.
Listen professor, you could make the same point about most offensive language. The point is not whether you find a word offensive. Or even whether you agree with others who find such language offensive. In civilized discourse you go out of your way to avoid offending anyone personally while making your point. That's just common courtesy. Rush understood this, and apologized. So did Ed Schultz for that matter, no rocket scientist. If this is something you are not capable of doing, you need to stay on the sidelines. This website has been capable of accomplishing great things, but it's public perception will always be colored by its lowest denominator.
Forgive me if I detect a whiff of condescension in your response.
My point was simply making a distinction between words that are "offensive" -- but appropriate (if accurate) -- as opposed to words that are "nasty" -- and inappropriate (even if accurate).
"Slut" belongs to the former category.
Please accept my apologies if I have offended you with my response.