Update "Cut Cat" tags

BUR #18740 has been approved by @nonamethanks.

mass update cut_cat -> original -cut_cat
rename kua_(cut_cat) -> kua_(cougar_(cougar1404))
rename silui_(cut_cat) -> silui_(cougar_(cougar1404))
rename pfirsia_(cut_cat) -> pfirsia_(cougar_(cougar1404))

We don't just make copyright tags for every original comic or concept artists create. At least in theory; Some users seem intent on flooding the site with copyright and character tags for literally everything just because the artist provided a name. Cut_cat -cougar_(cougar1404) returns zero results, and I couldn't find any evidence this "series" even has anything related to it beyond a few character designs. It should be tagged original. If someone really wants to group these images together, it should be with a pool. Additionally, the characters should be qualified with their artist, not a copyright that's seemingly little more than a twitter hashtag.

Looking through these tags as they stand right now, I would like to point out that these tags (and the one wiki page there) have all been created and added by one person. I take that as a sign these tags need to be updated.

This bulk update request is pending automatic rejection in 5 days.

This bulk update request has been rejected because it was not approved within 45 days.

The bulk update request #18740 (forum #249242) has been rejected by @DanbooruBot.

Yeah, typically we switch to copyright when there's some semblance of copyright, like a comic or character interactions. In this case the only reference I could find are post #6524122 and post #6524061, but I don't think that's enough to give them a copyright tag, especially since these characters are always drawn alone.

It seems to me that it's a series of pinups with common traits rather than an actual copyright.

The bulk update request #18740 (forum #249242) has been approved by @nonamethanks.