Dr. Lim Yong-han isn't growing as much as I expected

‌Among the members of Tojeonsa (History/War Enthusiasts),
it seems like Charles Se-hwan is the most successful, with 660,000 subscribers and constant appearances on both terrestrial and public broadcasting regarding defense issues.
Heo Jun was already unrivaled as a game caster, but he has now expanded his scope into Yeokjeon Dabang and the military field.
Dr. Lim Yong-han also seems to appear quite often,
but his subscriber count is only 100,000.
Personally, I find Dr. Lim Yong-han's channel very comfortable and enjoyable.
I like the atmosphere where historians, both men and women, come on to have casual conversations like that,
but it isn't growing as much as I thought.