I’m glad we’re asking Pixiv artists for permission to repost their work. But the idea that we shouldn’t repost deleted art is ridiculous.
There’s a lot of great fanart we’ll never see again without reposting. When they move on from a fandom, Japanese artists have a tendency to delete all the works they made for it.
We should always credit the artist, but if they threw their hard work away, I don’t see why they would care.
(pic is by Cidertree, everything by them is deleted.)