Unusual amount of rejections. They used to approve nearly everything and now they're rejecting nearly everything.

Well, your name is not on that list. This is why you are not getting any sales.

On the "Categories" page of YayMicro a few photographers are listed under the category of "Photographers".
I don't think this is fair because just few get their names listed. The great majority of contributors are not on the list. The search by the name of the photographer is enough.
What do you think?