At no point did I say it's literally impossible to read.
I really don't think you can have it both ways on this one. If, contrary to what you've been suggesting, the style only has a minor impact on your ability to understand what is being said, then what's the issue? Why get so worked up about the fact that some esoteric French alchemist writing in 1929 isn't writing in the journalistic style that's currently in vogue?
There's a wide spectrum between "easy to understand" and "literally impossible to understand". Everything to the left of "literally impossible to understand" can be understood (at least in part). That doesn't mean the effort is low. Hell, I can "understand" German but I'm going to spend a lot of time translating words I don't know.
Why are you so worked up about someone online doesn't share your love of flowery prose that you're willing to engage in borderline trolling to piss them off? Personally I don't care about Fulcanelli and had never heard of him before today. I do care about general quality of writing because I'm exposed to it constantly.
As to why I'm worked up: you're expressing so much disdain for any piece of writing that doesn't give you exactly what you want in exactly the form that you want it. A big part of a humanities education used to be forcing people to read lots of pieces of writing that don't meet that description. I think that was broadly a good thing. Reading shouldn't be a purely transactional activity.
