I don't understand much of the site either, but at a high level, my guess is that it's sorting crypto coins by computation required vs $$$. Right now ETH is at

I don't understand much of the site either, but at a high level, my guess is that it's sorting crypto coins by computation required vs $$$. Right now ETH is at the top, aka for every flop you put it, you get the most return, but there are many others not far behind. So even if you were to eliminate Etherium entirely, there would still be plenty other that are profitable to mine. Why sell a GPU for a fraction of the price, when you can just switch over to another coin and make 50-90% of the money you were making still.