When we implemented the marketplace, we didn’t think it through very much - it was more of an impulse idea: “Let’s just add a used module marketplace.” That has now led to a large portion of the work revolving around it: chasing scammers, dealing with downvote drama.

I don't know of a direct solution to this problem, but I do think that it's important for users to know that purchase protection does not go both ways.

While this is a valid point in reality the vast majority of people who get scammed are buyers.

The disclaimer is meant to make it clear that transactions here are private deals between strangers. Whether you use PayPal or any other payment service is up to you - the point is simply to remind people that it’s a good idea to use a service that offers some form of insurance.

What this results in is a double standard where a seller's positive feedback is disregarded by the buyer, yet a buyer with zero feedfback expects the seller to trust them to not file a claim for whatever reason they may have.

The voting system, the other headache: it is far from perfect but better than nothing. And also as a seller you can look at the votes. Which, I am aware, give you another illusion of security :(

Maybe there are better solutions today, like embedding some type of escrow service. Will look into this and open to ideas.