I have a rule about responding to Someone Being Wrong on the Internet: just don't. But if that doesn't work, at least wait a while. There's plenty of negativity in the world, and most things don't really need someone else piling on just to say Nooo! But, there are exceptions. I've talked before about how genres in fiction are more about marketing than the actual content of the story. I'd even argue that if a book can be easily put in only one little box, it's probably not much of a story. I mean, what science fiction story doesn't have at least a hint of mystery, romance or adventure? But there are even more pernicious forms of genrefication (yeah, I just made that word up, but it works) - categories of who the fiction is supposed to be for. You might think I'm about to rail against Men's Adventure here, but anyone with a clue knows that one is just dumb.