I think the problem is there are too less people reviewing, not the new system. I liked those ranks, but the rest should stay like it is I think. What do you want? Should the admins pay you money for writing reviews? I've just started reviewing a little again, even though I don't exactly know why. I just do it because I can.

A solution might probably be "recruiting" someone who writes good reviews and is fairly active to the "official J2O reviewer" or something. I'm not sure if that would work though, it's just an idea.