The coin's difficulty is adjusted everyblock so throwing 5000ghz at it won't make you mine any faster. A maximum of 960 blocks (4800) coins can be mined per day so the only thing these nicehash users are doing is making it more difficuilt for themselves and others to mine. It's like this at every launch but eventually these dumbDucks realise they aren't making the money they anticipated so bail out lol... and when the dificuility is lowered the all come back and bail out again Its just ridiculous