Look at this position in Game Explorer.

http://www.chess.com/explorer/index.html?id=799061&ply=7&black=0

Any master would play the obvious Qxg5, winning a piece, but the most played move is 4... Nf6.  If 4... Qxg5, 5. d4 does not work due to 5... Qxg2 6. Rf1 Qxe4+.  I would like to see what the average rating is of those who play 4... Nf6.

Thanks for the confirmation and explanation Gonnosuke.  I will report a bug.