I don't think Carole's use of it is fair either, just because one person uses it don't make it acceptable and thus fair game.
To be honest you could have just dropped it from your initial post and included the information about the television interview with the shadow chancellor and it'd have added a lot more to the HN community than tired insults all sides use.
I want discourse and intelligent debate from all sides without the slide into the type of vocabulary used in so many other places on the internet.