He is obviously intelligent enough to know that people don't think the number is meaningless. My guess is that he was just too lazy to add the undo, and also takes a small amount of pleasure in seeing people get annoyed at something he thinks they shouldn't get annoyed. Not the end of the world, and he actually does have a small point (accidentally incrementing a "kudos" count is not really something to get bothered over). But with the pretentious blog post, his underlying douchiness reveals itself.
