The biggest reason we ended it was because there was so much cheating. I know some people enjoyed it and worked out things for themselves but cheating was on such a large scale. :/
tbh I'd be fine with doing trivia like things for plots/holidays/mini-events but not bringing it back as a game in the format it was. For something we were updating every week, there was a lot of art we needed that could honestly be best used elsewhere and the constant like very obvious cheating was frustrating. It was also a bit frustrating that with every trivia question we put out, we got quite a few tickets asking for clarification or tickets after the fact that "MY ANSWER SHOULD'VE BEEN RIGHT" :x
Yeah, that's why I'd rather it be used in like plots/etc because not only would do we encourage users to work together on things like that, but also we aren't all stretched thin to release it weekly (art wise + question wise)! Trivia as a game itself was a mess on multiple levels, haha. Bringing back old items via trivia wouldn't work well because they'd be devalued so quick because with users cheating/helping easily like 2k+ of an item will go out when the question is over! and I haven't had to bring back too many old trivia prizes via crystal shop because so many of them went out the first time :x