It's needed in the crypto market, there are too many dodgy exchanges that are claiming millions of trades but really there is very little activity from users of the exchanges.
I don't know how they will actually do that though successfully as most exchanges are centralised. Great read though and a step forward, even if it's a small one.
Also great find with the blogging platform, i've signed up to that as well, they have over 9,000 signups and growing, i think they will take the crown of blogging platforms soon from Steemit.