I haven't looked at steemhunt closely. It may be the devil; but it's another direction in which to delegate one's SP, which can't help the bidbots (unless I'm missing something).
I'm very confident quadratic rewards would hurt the bidbots.
If I can halve your post reward using a quarter of the voting power you just paid for, that's going to suck for you, and you're going to stop doing it.