Good point! I somehow knew that this might be intrepreted wrong.
3.) Pictures and Videos with a title and nothing else
This is where human intuition comes into play. When I review people, I can see if someone is copying pictures from the internet or if he has done them himself.
And also how good these pictures are.
Creating 4 pictures a day of anything you see with a simple smartsphone-shot doesn't make you a photographer.
So - the reviews happen on a human level, but this takes time and thats why the no-refund policy was the implemented.
Makes sense. If good photographers are rewarded while weeding the spammers there's nothing like it.
It must be taking a lot of manual effort though, so the no refund policy is a justified word of caution for the spammers.