I'm not sure that's relevant, though, because someone else is controlling the scrolling according to what they are reading. That it interferes with your reading is unsurprising, and I don't think says much about the reading experience when you are in control.

my mom has trouble using computers because of the scrolling. i imagine it's something in the same category as how i can't read anything in a moving vehicle without getting a ginormous headache, but other people don't have trouble with it :|

Okay, but that's kind of a non-sequitur in reply to my comment, which was pointing out that you can't conclude much about reading-with-scrolling when someone else controls the scrolling.

Have you ever tried reading a book over someone's shoulder? Or a newspaper someone else is holding up in front of you? Most people have to reach out and grab it themselves before it's comfortable to read. I think it is just a motor/sight sync issue for most people.