There is a certain risk associated with buying used items. Even a item exchanged for cash via Craigslist can have issues - say a lens issue that only shows up i

There is a certain risk associated with buying used items. Even a item exchanged for cash via Craigslist can have issues - say a lens issue that only shows up in certain lighting. Too bad, we can’t solve that. However these platforms can solve anonymity - may be UPS can verify ID and address in addition to basic checks with item photo and weight. That is, make it equivalent to an in person exchange.