Comment by CommanderTvis

If it didn't have Wikipedia's layout and structure, I'd say all the articles were from something adjacent to the SCP Foundation. The narrative style is much more SCP-ish than Wikipedia-like, because Wikipedia's main strength is its interconnected network of articles, which eliminates the need to tell the whole story on a single page. Only SCP Foundation articles try to capture the idea of an entire world on a single page.

UPD: And, well, sadistic and otherworldly descriptions of the unenviable existence of all humanity after something terrible happens are the SCP Foundation's bread and butter.