Yeah that's not what he said though. He said one user is putting out that much, confusing it with the top miner on pool.darkcoin.io .
But he said "almost getting half of all daily production =\" which implies that he was talking about a pool.
In no way does that imply he was talking about a pool. Plus the same guy confirmed on c-cex chat that he made a mistake about thinking 300 000 khash was 3 giga hash instead of 0.3.