Sure, he's an egomaniacal, Kocksucker who stands zero chance of becoming President of the United States, but if we keep pointing out his shortcomings (too numerous to list here), he might drop out of the race.
This would be disastrous to not only snark-masters around here, but the Democratic Party as a whole.
Walker has pretty much already shot most of his foot off, but his early exit would prevent him from shooting not only his other foot, but the feet of other passengers in the Republican Clown Car.
Look, the others know they have to out-crazy Walker to get traction with the teabaggers, fascists, and the 72 year-old average aged viewers of Fox News... so let them have at each other. Invest in popcorn futures and sit back and watch the Sunday Serious Talking Shows.
Leave the man alone, and bless his little heart. You'll be glad you did, and Jon Stewart will appreciate it.