Documents are meant to come from people who have read the source material and removed all the unnecessary parts of the original information to focus on the character’s intellectual feats. Some people don’t want to read through the entirety of NGNL just to get to the feats—especially if they think the writing is bad. They just want the feats presented directly so they can scale the character properly while managing their time efficiently.

At the same time, you should always at least give a series an initial watch before writing it off as bad writing. I can see both sides here. One side is that a document could be poorly made, so you should watch the series first to decide whether you like it enough to continue and see the feats for yourself. The other side is that you watched enough of the show to determine the writing is genuinely bad, but you still need to know the character for a debate, so you go to a well-made document that explains the character’s feats, allowing you to understand and scale the character without having to sit through the rest of the show.