tomakali,
i would say that moderation of the 'market' as Andrew has coined the phrase of what we would be dealing with for purchase of modules and add-ons, the fact that the author would have to spend $20.00/month to list the product, i would think this would be quite the deterrent to avoid somebody passing off stolen mods and or non-functional add-ons. also, i think where it hasn't been specified as of yet, is that we will still be maintaining the product verification, whereas an author would submit see more and have to await approval of the module or add-on being approved before it actually goes on the market.

and your inquiry of the rating system, both from a product standpoint and the support level from the author after-sale will be rated, and presumably this will control other factions that many have dealt with on expertzzz.

Regards,
DosDawg