This show is absolutely crazy and brilliant when it comes to realizing ideas such as time travel, other dimensions, simulations and such and it doesn't have any plot-holes since it's so well thought out.
A lot of stories found within SCP Foundation have redacted details, following the saying of "less is more". By leaving a lot to the reader's imagination, the stories become much more terrifying than if they would have every single detail spelled out.
SCP Foundation has a very strict policy on the originality of the stories posted in there. If any story has a reference or similarity to an existing work, it gets deleted immediately.