This would be awesome. Of course Nick doesn't have as much to lose. But getting KO'd in style wouldn't keep him up there for a soon 170 title shot.
But this would be great, Diaz without any wrestling advantage and even physically weaker than GSP willing to fight ANderson at any weight.
Talk about a guy who isn't afraid of an ass whooping (because I believe Anderson surely would). He has confidence in his chin. He really has nothing to gain from getting picked apart by Anderson, but he likes a challenge to see where he is at amongst the best of all MMA.
Nick isn't making 15 million a year either.