Old fans who got jobs and by now even their own families. They weren’t really active when more and more people started to be part of an international community. When I joined Kpop 12 years ago there weren’t that much international 1.gen fans already. I learned about the first 1. through my faves. It’s not really comparable.
But some due tho, I have seen many bringing up the history of Kpop in several discussions in the last month. There were even users who made History Threads about different Acts and their achievements and impact in Kpop. Maybe you missed those Threads.
I think if is comparable because kpop fans often want new fans to know the history of kpop because it's not ok not to do so and show respect to older acts. I agree with the second part, tbh. Respect should be given to everyone.
In these discussions though, I rarely see kpop fans (1st, 2nd, 3rd gen stans, it doesn't matter) mention H.O.T, for example, for breaking into China. It's either Big Bang or EXO that are credited this achievement.
I think you might mean the appreciation threads of that H.O.T. fans. They didn't always get enough traction. I expected they would be more popular all things considered.