Firstly, this image clearly states that reposting is prohibited. So it should not be posted here in the first place (or is there some arangement with the creator and Danbooru?)
Secondly, this text makes the image worthless and unworthy of being posted, in my opinion. I wonder if this is the creator's helpless response to AI theft. If so, it's a terrible approach.

Peondust said:

Firstly, this image clearly states that reposting is prohibited. So it should not be posted here in the first place (or is there some arangement with the creator and Danbooru?)

As long as it's not behind a paywall, it's allowed. However, even publicly available posts can be taken down if the artist sends a valid DMCA request.