David Warrin, of Ottawa (Ahhhh... recall the Canadian offensive of yesteryear?), writing for Real Clear politics, had a more clear-eyed take on Palin's decision to drop the niceties:
Candour is when you tell a truth that is disturbing,
in language so unambiguous that persons in polite company will not want to hear you.
It is a way to lose the respect of the genteel -- of those who are "respectable" in the shallowest sense.
Rude language is quite unnecessary to this end: the hard truth itself, spoken plainly and publicly, will give sufficient offense.