haha, I know exactly what you're talking about. Back when I was more into lucid dreaming I used to try and talk about it with people and would notice strange reactions. Of course there's the scoffing and dismissing of it. Among other things, I think this might stem from the notion that lucid dreaming is an anti-social behavior, which it kind of is. It's kind of the same reason some people scoff at video games, or hate on people who don't have a job. So many times an interest is measured on how much social interaction it involves, at least in a westernized culture.

But I also think that there is something deeper. Dreaming is such a huge part of lives, yet so many people neglect it when they are awake. I think this is because your dreams do say something about who you really are, and to investigate that at all is fear-inducing to a lot of people. I really think people are scared of their dreams.