The only reason the IMF (et al) had to step in was because no normal creditor was willing to assume the risks that came with lending money to Greece anymore. If

The only reason the IMF (et al) had to step in was because no normal creditor was willing to assume the risks that came with lending money to Greece anymore. If the IMF was a normal creditor they would have never given any loans to Greece, and definitely not at this scale. So disregarding the IMF now with a claim of "they are just a creditor and knew the risks" seems a bit unfair. They lent this money to support Greece, not because anybody thought it was a good investment.