Artist.
Hokkana's tweet:
I just used danbooru's artist search. I found my old handle name and an even older one, but can't find Hokkana. Danbooru denizens are no great shakes, you know?
Japanese name: ไฟ็ฎกใใ (Hokan-kun)
Old names: ใปใฃใใช (Hokkana), ๅ ็ณ ใใชใ (Horiishi Kaname)
Circle name: ใชใใซใ่ก้ (Namonya Kaidou)