BUR #6332 has been approved by @Hillside_Moose.
create alias nyanners_(character) -> nyatasha_nyanners
We can split hairs on the "old" versions of her character but at the end of the day it's the same character, and having the tag for the "old" design (post #1653763) named like this only invites mistags.
Vtubers change outfits every couple of months nowadays so this kind of distinction doesn't make much sense anymore anyway.