The Shutterstock FB group is full of people trying to game the system.

Here's one from today who is a (i) AS contributor and (ii) AS account holder offering openly to buy images of other contributors on request for a fee to boost search rank.

FWIW given his posts elsewhere its likely using stolen account credentials as he's selling LOTS of different things.

There are more and more of these types of post now.

Fed up with that group. Half the people posting there have stolen images and have no shame. It's a reflection of SS's collection atm.

The only reason im on it is because i find it entertaining and a very rich source of image thief portfolios to report.