I think you're all incorrect.It doesn't *have* to be perfect.Imagine yourself in the position of a buyer. Now, it could be the case that the lab test flag is irrelevant for the afore mentioned reasons. But I bet that they'll feel a lot happier with some guarantee rather than no guarantee whatsoever.If an independent 3rd party processes minute samples of all the drugs here using various testing kits, then we have some validity.It's like this, you click on the flag and it bring you to a picture of the tested sample item in question. There would also be a disclaimer underneath the flag explaining what it signifies and that it's an imperfect judgement call.Then you allow people to make up their own minds. Personally, I think buyers will be much happier with the effort pro sellers are putting in to validate their product (there could be a sliding scale of validation too e.g. no. of tests done and what kind).Selling is a game of psychology. A simple thing like this could literally double your average sales. If somebody disputes the flag, then it is possible for a seller to lose their "flag stripes".Again, it doesn't have to be perfect. Vendors are often 'googled' on the forums to ascertain whether they are legit.That is also highly imperfect, much more so I would say, than a test such as that which we've described. Yet it is a sensible and common practice.