I think dating sites have become so competitive and is based so much on that one or two pix that people try to put up their best face forward - not necessarily their most recent one...

for example I guy I know met up with a girl who looked nothing like her profile pic - no surprise there because it was taken when she was in college which was several years back...

Guys can be a little touchy about their hair - my friends are - they tend to be a bit self conscious about it or a lack of it therefore...