[Oni]

The best part is that you can using use points in the marketplace, and can exchange them for goods and services.
But what about getting scammed?

Well, staff would actually be able to give you your points back if you are scammed.
We have more control over deal disputes if they are using points.

Is it possible to implement and Escrow system into the website?

Anything is possible.
However, I don't see that being something we need at this time.