It is important to differentiate between a "scam" and an "alternative sale".
Remember this thread started off as a complaint against turnkey websites - websites based on templates with a domain name and perhaps with some hosting.
Now if you truly want a well developed website, maybe having years of established revenue, obviously these are not for you. However there are many people out there who do not have the time or ability to design themselves a working website and for these people such "ready-made" websites are ideal (as evidenced by the number that are sold).
Quite simply there is a need for these in the market place and they have the right to be sold here, provided that the sales thread clearly states that they are templates, so that there is no confusion.
Now of course, if you come across "traffic" sites offered for sale and you see that there is clearly a case of inflated numbers/fraudulent advertising etc, then that is a different matter. On the bottom right of every post there is a link to report that post to the Mod team and give your reasons for reporting it. In doing so you will be helping the whole community.
We all deplore scams and fraud, however it is important to remember that just because something is offered that we do not want, that does not automatically make it a scam!