What's your opinion on the BDSM world? How did you come to learn about it? Who/How were you taught about it? Is it a place of freaks and fetishists? Is it just a hobby? Etc etc.

I'm curious about the BDSM world. I've seen some of the good sides, some of the bad sides, and I've heard stories of all types.

So what I'm asking, is basically, what comes to your mind when you hear/see BDSM? Your response to it, what you think of it.