Thank you kokopopz,

I think you're the third person to suggest "marketplace".... So ok...I'll add it haha...but I could use some help coming up with the right "name" for it.

First of all we have to know what the objective is.    I'll throw one out:   To allow private, anonymous, peer-to-peer , and "legal" exchange of goods.   (?)

"legal" is an aweful term...everything's legal somewhere, and everything is illegal somewhere else.   By "legal", I'm implying that it is legal in most developed countries.   And, hopefully, would be the most minimal risk to most users.

Now of course, even the most compliant solution will have legal implications in some places, and as such it should be built to protect the users.   Ie., an otherwise marketplace for Venezuelans to get basic medicine.

Things like account balances can be dangerous.

My concern with the terms "marketplace" and "exchange" is that these are things which are often shut down.    Maybe we have to use that term.  If anyone can think of a better one let me know