I've already stated this before and I think this is the simplest/most eloquent solution.Disputed Transactions/Total Transactions in three separate categories - 1 week, 1 month, 3 monthsSure a buyer could have a string of bad luck (common with opiates), but they could always just open a new account and try again. But this way if a pattern builds we can see it and a seller can refuse to do business with them. Also, sellers, if you have a nasty buyer post about it in the forums and "etiquette" be damned. Tell your story - if the buyer is legitimately hurt on their end they will address it, and if not then we know not to sell to that username. As long as you aren't posting actual personal data (unless you can 100% verify it is LE then post away).