Dude, no offense but that advice is a bunch of crap that will get somebody killed. Plently of people have OD'd on heroin while snorting it.
It's bad stuff all around. Also, I would never recommend anybody use it "recreationally." Sure, maybe some people are able to use it for a week or two and then drop it without another thought, but for most people, the potential for serious long-term addiction is very real and quite debilitating. Why play with fire? Or why tell people that heroin is fine, just do it in moderation? Pretty poor advice, in my opinion. Which is weird cause you seem like a cool guy.
Just my $.02 and all. I think all that shit should be legal anyway, so knock yourself out, it's no skin off my back.
Have you ever gone through a heroin withdrawl or seen one?