If we consider a common understanding, 'shaft' can refer to different things like a long, narrow part or a passage. In some novels, if there is a description of a shaft as black, it might be for creating a certain atmosphere, perhaps a sense of mystery or gloom. However, again, without knowing the particular novel, it's just speculation.
Shaft visual novel could be a term for a visual novel that has some connection to Shaft. Shaft has created many visually striking anime series. In the context of a visual novel, it might imply a certain aesthetic quality similar to what Shaft brings to its anime works, like detailed character designs and elaborate backgrounds.
I'm not entirely sure specifically what 'Shaft Pulp Fiction' is about as it's not a widely known common term. It could potentially be a creative or niche concept, perhaps a mash - up of the movie 'Shaft' and 'Pulp Fiction' in someone's unique artistic vision.
I have no idea who created 'Shaft Pulp Fiction' as it's not a well - known mainstream creation. It could be an indie artist, a writer for a small - press publication, or someone just messing around with concepts for their own amusement.
I'm not sure if there are specifically named 'shaft visual novels' that are extremely popular. However, if we consider works influenced by Shaft's style, there could be some visual novels out there that have adopted similar aesthetics and gained a following.