TUCKER CARLSON, JOKESTER…. Over the summer, Tucker Carlson and his online enterprise boasted about having purchased the keitholbermann.com domain, which they intended to use for humor.

Carlson, it appears, is quite the jokester.

So it was interesting to see that Olbermann allegedly sent some angry emails to the Philadelphia Daily News’ Stu Bykofsky using the email address keith@keitholbermann.com.

Phawker.com, which published the exchange, claimed it was “guaranteed 100% for real.”And Bykofsky later confirmed to media industry watcher Jim Romenesko that he was writing to keith@keitholbermann.com, which he believed to be Olbermann.

Although emails were indeed sent back and forth, it wasn’t Olbermann on the other end.

No, that was Tucker Carlson, pretending to be Olbermann, and leaving Bykofsky with the impression he was having a heated exchange with Olbermann.

Asked for an explanation, Carlson said. “Could you resist? It was just too funny. The flesh is weak.”

Perhaps I’m expecting too much here, but I have a hard time imagining how Carlson justifies this. A media professional sending a series of emails to another media professional, all while pretending to be a different media professional? All because it’s “too funny”?

Zaid Jilani added, “Carlson’s juvenile attacks do not reflect well on The Daily Caller. At the time of the Caller’s launch, Carlson wrote that it is ‘primarily a news site. We see our core job as straightforward: Find out what’s happening and tell you about it. We plan to be accurate, both in the facts we assert and in the conclusions we imply. If we’re not, tell us. We’ll fix it immediately.’ One has to wonder how Carlson plans to fix his latest act of deception.”

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Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.