I have been selling on ebay for years, this last year i did quit, one of the reasons was that were many many buyers asking for refunds even i know the item arrived. This days i have found many many "bad" forums where people suggest how to ask for refunds, which platforms are best for asking refunds and also services of people who act as midle man to get a refund for you. When i read this forums i notice even more how "blackhatworld" is the best of the best , not even take action on the people that try to scam us insted moderators, senior members, juniors, help for free giving advice help and some time spoonfeeding us, newbies. THE POINT. As a seller many times i searched a list of bad buyers , but if someone would have offered me a monthly susbcription for a database where I ( we sellers ) could check if the buyers asking for a refund were already asking for refund in other platforms or others vendors , i surely would have payed, 4-9 monthly fee for that. So i suggest if some one could take time to contact each ebay seller, each amazon, and other platforms sellers, for a list of refunded people, then make a database, offer them an account to include each time a buyer ask for a refund, so they can keep control of posible fraud, this would be awsome. I do not know if this is possible or legal, hope it is. I have in mind other projects but if finally i do not take action into them i would think in preparing this as i belive is a good service which would benefit from millions of fraud for every emerging big seller platform in future. Lets push people to make thing the right way and not stealing and if in the way we can profit giving a service, why not?. Sorry if my english is poor.