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From my understanding, does XC still need a number of masternodes (or supernodes or simply nodes or whatever you call them) to perform mixing ?
If the answer is yes, the coin will be less decentralized as long as amount of nodes smaller than amount of clients/users, is it true ?
An who will operate these nodes ? what is the benefit for operating one ?
Is there any potential leakage of user's anonymity in case one entity own a sizeable amount of nodes ?
No, XC no longer has any degree of centralisation. Every node forwards/mixes transactions trustlessly.
There's also currently no minimum amount of coins required to run an Xnode. The app does it automatically.
The benefit of operating an xnode will be:
- you get tx fees, though these are still to be determined. Chances are they'll be very low.
- you get to use secure private messaging (currently working; update due shortly)
- you get to stake
The messaging thing is the strongest incentive to keep apps running.
If we need to provide more of an incentive we might increase tx fees. But we expect tx volume to make up for low fees in due course.