I never meant to say that he would stop writing in response to criticism but rather a purely hypothetical scenario where he stops writing (for whatever reason, like a mental breakdown - à la Rothfuss). Or if it started taking him 10+ years to release a single book...
All I'm saying is that how much and how well he writes (as a whole), and especially how reliable he's been for the past 15 years, shouldn't be a reason to pull your punches, but at the very least not try to go for the knockout each time...
Keep in mind that I'm addressing the fans that generally agree that RoW was a very good book (despite its flaws). If you truly hated the book (not you specifically), or have mostly a negative opinion of it, then of course you're entitled to said opinion