(wrote this a little earlier but thought "[SNQR]")
I suspect most of that wiki page was written/edited by main, in his unique style. Likely the same for any presence of eye of eve / game of deviance. He likes to veil everything across a comedic barrier. I've seen plenty of times where people ask him a question and get a joke response that contains the answer they were looking for, except without them noticing. Then the joke becomes that they were told the answer, but still ask about it anyway. Saying he is 'lore master of CEO' actually fits pretty well.

At the start of my adventure I saw a lot of references to magic, to be precise I heard about Sigils

There are sigils, and there are 'hypersigils', and there is something greater still. I have my own personal theories on them, and they do not deviate very far from my other ideas. If the 'magic' works, then outside of pure coincidence something intelligent had to be involved. If an extremely sophisticated sigil works, then that intelligence must have been quite extreme as well to even get the memo in the first place.
So then I wonder, what is the limit to that intelligence..
and has anyone ever tried contesting it?

Supposing some form of 'supreme intelligence' is involved, I think most sigils probably look like crude kindergarten drawings tacked onto the fridge for solidarity. From that frame of mind, I'm curious to know what happens if the sigil is so far beyond the bar that it becomes an unfathomable masterpiece.

When watching the Grandest Scheme I feel really calmed and a positive feeling that goes through my entire body. On the other hand Eye of Eve did the polar opposite having every fiber telling me "run, get out, DANGER".

eye of eve has been described as dangerous more than once.