One definition of "crazy code" is some monument of complexity that has accreted around a simple core.
Another definition, though, is something that approaches the problem at right angles, bypassing all kinds of incidental complexity. This is generally confusing at first glance, but is definitely worth the time it takes to understand.
Yes. You can find a lot of stuff like this at the Haskell mailing list. The hard solutions are usually better, and people like Heinrich Apfelmus explain it all.
Another definition, though, is something that approaches the problem at right angles, bypassing all kinds of incidental complexity. This is generally confusing at first glance, but is definitely worth the time it takes to understand.