Keith Olbermann has left Daily Kos (he was a blogger there) after his critical comments about Barack Obama’s handling of the oil spill outraged the Obama fanboys at the community blog.

Olbermann and some of his MSNBC colleagues surprised their left-leaning fans on Tuesday with eviscerating critiques of President Barack Obama’s Oval Office address on the oil spill spewing off the Gulf Coast.

“It was a great speech if you were on another planet for the last 57 days,” Olbermann said of the president’s remarks, echoing similarly negative comments from fellow MSNBC hosts Chris Matthews and Rachel Maddow.

One commenter on the Daily Kos, where Olbermann has frequently blogged over the years, speculated that the pattern of hosts generally sympathetic to the president bashing the administration was too consistent to be a coincidence.

“Can’t verify, of course,” the commenter began, “but a friend in the news biz tells me he got a damaging e-mail from one of his pals at NBC. Something to the effect that their anger was pre-planned because ‘beating up on the president has been good for ratings.’ I haven’t checked, but I’m hearing that Olbermann slammed the speech on Twitter before it even started.”

This pissed off Olbermann, who wrote a posting in which he promised not to return to the site until its community stop delving into conspiracy theories. So it’s safe to say that, unless he backs down, Olbermann won’t be back.

One more point: This is the site owned by a guy who said “screw them” in response to the murder of multiple American contractors in Iraq. He was talking about the contractors, apparently because making a fair profit from providing a service to the U.S. military means you deserve to be brutally murdered.

And yet Bathtub Boy here didn’t have a problem blogging at the site until its community went after him. Apparently you can damn-near applaud the brutal murder of American citizens by terrorists but don’t insult Keith Olbermann. That will force him to leave.