[DiapDealer]

Sounds like a decent way to handle it to me. Customer gets a say; authors get some free editing advice; and atrociously-formatted books get pulled (if reported enough). Only problem is: I'm pretty sure this is always the way it's been with KDP (with the exception of the visible indication that a book may contain issues). Sounds like this is adding one more welcome level of granularity before the suppression of books for sale. I rather like the idea, myself.