The common disrespect people use toward the man in the Oval Office bothers me as well, but it is in a sense, an inevitable historical legacy, both of Vietnam and Watergate, the omnipresent media - which goes hand in hand with a president's often bubbling attempts at presenting an image, and we come at last to the Clinton and Bush years. So it doesn't surprise me one bit. But do I let folks I know get away with it? No (well, I let my Dad slide), just like I don't let enlisted folks call officers by their first name - Respect the Office, if you can't respect the man.
But it's also politics as usual on an internet forum