IMO hanja sucks except for differentiation, and Koreans these day uses less and less hanja itself as part of daily language use, but maybe worth doing it. It's all LGTM for me.
Topic on User talk:TJones (WMF)/Notes/Nori Analyzer Analysis
I'm going to reply hear first since this is the easiest one! The Hanja-to-Hangeul conversion is turned on by default, so I left it in. Also, because of the way our search is configured, exact matches still get a boost, so if you search for Hanja, you are more likely to get Hanja, and if you search for Hangeul you are more likely to get Hangeul, all other things being equal. But for rarer terms, the Hanja-to-Hangeul match could be the only thing that matches, which is good.