Aliasing gasupatyo → kuo
Link to alias

Reason:

Same artist.
gasupatyo - pixiv id
kuo - more post, used on other sites, twitter nickname

Does this sound good to everyone? I'm not 100% on our Pixiv/Japanese tag policies XD

Yeah, this seems good.
It's better to use the artist's nick, instead of their login names (which are often completely unrelated to nicknames).

Alright, approving.