It looks as if the hint field wasn't properly toggling on and off depending on user settings, so that is fixed at least.

I've also changed the system so that even if the show hint field is disabled, the hint will appear if the question is answered incorrectly. This should provide some reinforcement in the event of incorrect answers, and if people want more time to look at the hint before the next question loads, they can change the "delay after incorrect answer" field on the review page.

I don't want to make the interface any more complicated than it already is (buttons to toggle stuff on and off, etc.) since we are trying to keep things simple. And it isn't the end of the world if someone answers incorrectly either -- it just shuffles the word back to the start of their SRS routine and helps reinforce the proper meaning/pinyin by repetition that way.

So lets see how this works -- hopefully these changes solve your biggest issues at least.