Users of the messenger will be anonymous or will there be a mandatory registration and confirmation of KYC?
Authorization in the messenger will be via SMS with confirmation of the mobile number.
However, users may remain anonymous.
That is, KYC is not required?
This is very good, because anonymity and security for the messenger are priorities.
KYC and anonymity are incompatible concepts.
The messenger will be completely decentralized and use the latest encryption technology.
I am interested in the marketplace will be implemented on the basis of the messenger?
If you create your blockchain with a smart contract, then adding a marketplace is a smart solution.
In the technical documentation there is no information about the marketplace.
Smart contracts will be used for over-the-counter trading
It all depends on the prospects of the project. I think that in the future it will be possible to implement it if smart contracts support such functions.