As long as they are done without too much hubris I think told-you-sos are a vital component of the blogosphere. Reminding people that you were right when everyone thought you were wrong is an important way to establish your credibility — and lord knows we can’t count on the left to give us credit for ever being right. Though to be fair, we probably don’t do the same courtesy to the left often enough either. Which just goes to prove my point: told-you-sos are an important of any healthy debate, so long as they aren’t done in an asinine way.