Scott “Dilbert” Adams has met Charlie Sheen and thinks he really is a superbeing. This perhaps relates to some well-known cognitive biases. I’m not sure what this one’s called, but the idea is that Adams is probably overweighting his direct impressions: he saw Sheen-on-the-set, not Sheen-beating-his-wife. Also, everybody else hates Sheen, so Adams can distinguish himself by being tolerant, etc.
I’m not sure what this latter phenomenon is called, but I’ve noticed it before. When I come into a new situation and meet some person X, who everybody says is a jerk, and then person X happens to act in a civilized way that day, then there’s a real temptation to say, Hey, X isn’t so bad after all. It makes me feel so tolerant and above-it-all. Perhaps that’s partly what’s going on with Scott Adams here: he can view himself as the objective outsider who can be impressed by Sheen, not like all those silly emotional people who get hung up on the headlines. From here, though, it just makes Adams look silly, to be so impressed that Sheen didn’t miss a line of dialogue, etc. The logical next step is the story of how he met John Edwards and was impressed at how statesmanlike he was.