If you're like me and have a life to live and didn't find out about this controversy until a week after it happened, well, here's an article that essentially recaps everything. Fans in the NB comment section are saying its the haters' fault that this is still an issue.
To put the blame on haters is a copout. I've seen several comments like this:
This comment is so stupid that it could have been featured as an STFU post if I hadn't retired the series.
All it takes is a few minutes of research to see why Ahn Joong Geun is revered in Korea. Let's outlien those steps.
Step 1: Go to Google and type "Ahn Joong Geun".
Step 2: Click the Wikipedia link and read up on his biography.
Step 3: Go back to Google and type in "Japan War Crimes Against Korea".
Step 4 and 5: Click those two links.
You can spend as much time or as little time as you want, but you can do the research for your self to see why Koreans are annoyed that Seolhyun and Jimin don't even know a national hero. Putting the blame on anti-fans is skirting around the real issue -- Seolhyun and Jimin were ignorant about someone who actively tried to prevent Japan from ruling Korea.
Seolhyun and Jimin already apologized, which is more than enough. Blaming anti-fans for this issue still being around is not their fault. Fans keep engaging them, journalists see that articles about the controversy still bring in the ad revenue they desire, and the cycle keeps repeating until the story has no life left. The easiest thing is to simply ignore the anti-fans. If they have no one to rile up, they'll go back to fapping to Seolhyun along with the rest of us.