Why not just require mod sellers to use their real name and have a working phone number? Any kind of "certification" means you are providing some level of guarantee that it works with Dolphin - are you sure you want to do that? Then you could charge a small fee for "listing only".
Boonex buys mods and list in market and admins buy from boonex market - thats cool
support by modders, reviewing the support, the modders can earn grades
Below is the legacy version of the Boonex site, maintained for Dolphin.Pro 7.x support.
The new Dolphin solution is powered by UNA Community Management System.