Because it's not. If you look at the history, you'll see a long history of edits, many by MrBlonde.
He used to be Mrblonde, but changed his username. For some reason, the process didn't go fully and the user page and wall (or talk page? Can't recall how long ago it was) weren't moved. He copy pasted it to his new username. I figured it's still his page to do with what he likes, so I'm not touching it.