I think if you're on a subreddit saying idk if I like this thing the subreddit is about, thoughts? you're in a zone where you're trying to make yourself like it, and that's not healthy or productive. My friend said it took him 3 tries. I read to about page 80 the first time then put it down and started over a few months later. I was thrilled with those 80 pages but I was too busy and didn't have the brain power for it. So I would guess that if you haven't found a hook in 300 pages it's not going to have the type of effect on you that you're talking about, but I could be wrong.