This is not my idea, it's just something i stumbled over at chodscheats.
I noticed that they use this "Seal Of Approval - Sales Verified" image. They're using it, if somebody is having a sale.
The person selling, can request a moderator or higher to confirm that the items/accounts is in the sellers position.
My opinion is, that it could be a great idea to use at d3scene also. It would make the marketplace more secure, and it will make it easier for people to buy, sell and trade.
It's just an idea though.
- Best regards, Diamond.