Dating sites have at least a 2:1 ratio males:females, while the advertising has a 1:10 ratio. Any innovation in that sector will have to do something about that problem, rather than the problem of images not weirdly flying around enough.
... and places like GaiaOnline seem to exist primarily as an international meat market for the underaged. There seems to be just as many females as there are males. (I made the mistake of going into the Towns once). It was not like this online back when I was a teenager.
The point being that social networking sites and MMOs seem to work better as mating grounds than supposed dating sites.