Kos is asking a simple question: Can anybody name three good things that Bush has done? Most people cited topping the Taliban and Saddam... others responded to these by saying that the Taliban is far from gone and what will replace Saddam may, incredibly, be worse.
Thing is, these point to a big problem with asking these sorts of questions: it's really too early to tell whether what Bush has done has been "good" or "bad". The only way we can tell is if these countries and his own is in better shape after his presidency than it was before it, and whether the actions and events of that presidency were worth that change. Up until right now, it's possible to say that removing Saddam and the Taliban were good things, but we don't know right now if Iraq and Afghanistan will be completely ruined next year or in 2005.
With that in mind, though, I can't really think of much that Bush has done that has been an unqualified "good thing". Still, he's got a t least a year and a half left. If things don't start improving, though, it's more and more likely that a year and a half is all he's got left.