I suspected that it was only just another news aggregator + altcoin + buzzwords, were the creator underestimate how difficult is to moderate and prevent spam, specially if it is successful, specially if it's easy for cheaters to monetize because the karma is somehow directly related to an altcoin.

But after reading the article, it looks much worse.

PS: The thread of the post is https://news.ycombinator.com/item?id=12331824 (no comments yet)

I actually submitted that a few minutes after I posted this "Ask HN." I was poking around, and I thought it was an interesting read.