I've been curious myself. What I've gathered so far is that the cause is still unknown, but they're working to find clues about it. I'd be happy to hear others thoughts, though.
From what I remember, Homen created his in his teens (so all the cringe) and then he couldn't play the game, so his character remained the way his cringy-ass has made him, while others, even if they had created cringy chars, they still were playing them till recently, so over time their cringiness got diluted/disappeared? And that's why others remained basically the same way after becoming their chars, while our saviour Homen basically 2 different people ╮(￣▽￣)╭
Monyta explained it so well oml Σ(っ°Д °;)っ
I mean, I could just be missing it, and it was already explained, but can someone tell me anyway?
Why is his assimilation to his avatar so different compared to other players? It can't only be that because Grandfell's ego is too big, right? Yes, his lore is definitely made by a teen chuuni. But it can't be that there's no other chuuni-like lore heavy avatars, right? That's impossible? Where's the other chuunis, otakus, nerds?
Another thing is that other players remains themselves, but their personalities are affected by their avatars. But Hoyeol is the opposite. It's more like there are 2 completely different personalities in one body, with his own being dormant. Seriously, why is his the only one different?