BQM 268

 

After that the game continued like this. was a big mistake because the ladder at A works, which is disastrous for White.

is obviously not the right move, but I couldn't find any alternatives that turn out really well for White.
I looked up , from the original diagram, in the joseki dictionary on my Palm, where it is marked as a trick play, but no moves are given as how to answer it correctly.

Any good ideas from the Senseis crowd as to why that move is bad/not seen very often?

From Kogo's  

There are three continuations. c is labeled as a mistake.