well the word in question ahs been around for over 500 yrs all be it with an e added lol. 
if taken at face value  according to the dictionary it has 3 meanings. one of them being a term used to mean a very nasty person.  what  i find odd is that if we substitute the c word for another word  which means exactly the same thing eveyrthing is okay and no uproar is to be found. how can two words that mean the same thing be regarded two seperate ways. 

it's like the two finger v sign that is intended to me f off. that opriginated from the wars the english and the french had. mainly agincourt. the captured archers would be to expensive to feed and people dont like killing prisoners. instead they cut off a fing that drew the bow string back and sent the archer home. it was mentioned by a witness that some archers would raise their two  fingers to the french in a taunting manner that became synonimous with the phrase f off you haven't got my fingers. (just one of the origins) as usual the word was bastardised to incorperate many forms of defience.

not sure who said it bit i recall a quote that says...whilst the mind is full of treachery and lust and judgement , words are only words 

as for the word vulgar in relation to speech......it means language as spoken by the common man and not the f or c word in particular as some seem to think.

billy