...uh, just because
Update: Whenever I argue with people about this, I find out that we share different assumptions. Those who seem to support the bailouts assume that given some breathing space, the reckoning in Europe can be avoided. I assumed the reckoning is unavoidable, and will come either soon or at best in the next cyclical downturn. And it will be far worse in, say, 2015 than it would have been in 2010. Every time we delay the reckoning, we make it far worse.
And then there are politicians. I don't think they honestly know or care if the reckoning is unavoidable. They only care if it does not happen this minute. For politicians, the discount rate on pain is infinite. Future pain is thus always better than current pain.