I Think if you choose any Sr. Member or Hero Member rank person and Give them a one Vouch Copy they will Check and Review it in Your Thread about your Service. Then it will be helpful to get more sale for you. If you provide Vouch Copy to anyone and Here Review Placed then I too Interested to Buy your Tutorial.
Yes, that is right. For newbie, users here alway avoid trading with. Even they are selling the real good things.