In fact 4 of them pay over twice at much as Goldcoin, so with this miners 300/Mh/s instead of making $8.35 /day they could be making over $18.00 if they were a SmarterHash member because they'd know which coins are paying the best.
I think our hashrate just tripled causing difficulty to rapidly increase. Maybe this individual started mining before the hashrate increased, or he's speculating that our new client being released this month will cause a price spike, or perhaps he's a loyal Goldcoin adopter mining and holding.