No, it's not about him at all. It's just that other people do deserve to know that investing their time into studying some kind of material is not likely to pa

No, it's not about him at all. It's just that other people do deserve to know that investing their time into studying some kind of material is not likely to pay off. I agree, though, that "he's a troll" is not the best way of communicating it. You'll notice that I wasn't the one who did that.