Unbreakable said:
category borrowed_character -> meta
Link to request
This should be classified as meta knowledge, you can't know if a character belongs to the artist or not from the image alone (most of the time).
-1
Arguably, the same argument could apply to a suggestion of converting all artist tags into meta tags, because it seems that in most cases you can't know if a character belongs to an artist from the image alone. (images with a signature notwithstanding, but then again the signature is an optional thing; a borrowed_character image might possibly have a note saying "character created by: ..." all the same)
It's true that knowing the origin of a character is a "meta" thing in some sense, but I agree with fossilnix and the quoted Type-kun that the "meta" tags on Danbooru have specific guidelines as described above.
Using the tag apple is meta in some sense, because you need meta-knowledge of what an apple is before doing the tagging. Just an example that fits the current discussion. All things considered, apple looks just fine as a general tag.
borrowed_character looks fine as a general tag too.