I wonder because I think its kind of a "glass half empty/full" personality check. Laughers must be lighthearted optimists. Criers may be pessimists,  or realists at least.

www.extremeskins.com/showthread.php

So, ya, a redskins fan forum may not be the best place to find accurate info on henna, and at least they do get some helpful points on ppd in there, but man, it goes a little haywire after that!