The internet is about as limitless as you can get in a practical sense. That's a positive. Also, many facts do indeed stand on their own, and require no context. Trigonometry doesn't change based context. My measurements made in Asia, on the Moon, or anywhere else in the universe will be exactly the same.
Go to a library, and 90%(pulled from my ass) of the books will be trash, incomplete, or factually wrong. I'd put money on the general internet being pretty close to the same ratio. The difference is I can quickly verify the data online. If I don't trust the library book, I have to go back to the library, cross reference more books, and build consensus. What should have been an operation that took hours at most, has now turned into a days long project.