Please don't discount the entertainment value here. That entertainment is delivered up daily in three parts. First, he starts talking to himself any time the board gets quiet. Second, when that doesn't work, he invents imaginary playmates to talk with. But third, and this is the big one, we have the rumor of the day. You just have to tune in every day to learn how ridiculous the new rumor will be.
Face it folks, Yahoo cares about one thing and one thing only. That thing is advertising revenue. The more you tune in, the more advertising they sell.