When it comes to sources, there's got to be more automation.
Especially when you have the ability to upload via an image's direct link.
It's been proven that it can be done, direct linking an image from furaffinity adds the artist's page and submission link to the list of sources.

Why can't it be the same for Pixiv, etc.? It really doesn't help that, on top of the sourcing not yet being automated, the direct link is purposely munted to give you a 403 error.