Why did NOAH need a token swap?
First of all, to not be dependent on the Ethereum ecosystem.
Second, gas fees are ridiculous - every time NOAH coins are moved, Vitalik gets money (not literally, of course).
Third, technological advances of DPOS.
Fourth, functional improvements.
Fifth, this community deserves to have a blockchain of its own that it can control and influence as well as building a separate ecosystem of its own.