Probably because the extent of the post is "I know everything about this champ and if you don't listen to me you're completely wrong!"
You came across as a pompous, arrogant, D-bag know-it-all who thinks everyone should imitate you. I doubt that's what you intended, but that is what you ended up selling yourself as. You didn't seem like you wanted to be helpful, or that you wanted to guide people on their path to challenger, but rather like you think anyone doing anything other than what you do is a moron.
You may have wanted to be helpful and offer your insight as a resource to other players, but this is all about how you sell yourself. You didn't put your best foot forward (I hope) in terms of friendliness or relatability, and that got people to dislike your post without even feeling the need to look at your guide.
(Also, it was posted in the memes/games section and even if it was supposed to be humorous, it still really wasn't, more just annoying).
I posted the link to where everyone disliked.. :(
