If your talking about pre- GFC IMF (and World Bank for that matter) then that statement is so patently absurd that no even remotely rational human being could support it.
It is still wrong if we are talking about now. Just because they have embraced some elements of Keynesianism does not mean that they are "absurdly left wing." Remember it is currently run by a French Tory.
Arksy argued that Hitler was a socialist earlier in the thread, so you need to remember to recalibrate left to mean far right.