Sorry Bluntness, but I don't think you do understand what I'm saying. Which is fine. If you're not into this, you should definitely stay away from it. And I would absolutely urge anyone who wanted to explore it to take a lot of care. I was very very lucky with my first Dom, who made it very clear to me how this should work. It does come with risks and you need to be careful. Though, as I've said, abusive and horrible men are everywhere.
However the bottom line is these men are sadists. They get their pleasure from dominating, humiliating and hurting vulnerable women. This is their character.
You still don't understand. For a true Dom, it's about stimulation and mutual satisfaction. As I said, I spanked willing subs myself. I refute, in the strongest possible terms, any idea that this was an act of violence, abuse or assault. I would not do it to anyone who didn't want it. I would not do it past the point of their pleasure. I would not do it to the point where I inflicted harm. I would get absolutely no pleasure whatsoever from doing it to someone who wasn't enthusiastically consenting. My subs never safe worded but if they had, that would be it - scene over, and nothing but care for them until they felt better.
You may not like it, but many, many people are into pain - even Ann Summers has a huge range of paddles and whips. It's very, very, very common. It's the pleasure/pain principle (I've read that those sensations travel along the same nerve pathways), it's the feeling you get when you push yourself in a hard gym workout, it's the endorphins, it's the edge and intensification of the experience, it's allowing yourself to be vulnerable with someone you trust, it's helping you to lose inhibitions...
You must also remember the aftercare. It's crucial, and it's given me some of the greatest highs of my life. I always gave my subs plenty of aftercare, as my Doms always gave it to me.
I hope very much that OP has never been abused. If she is being abused now, I hope she gets out immediately. But based solely on this thread (I couldn't find anything elsewhere to worry me - perhaps someone can PM me a link if I've missed something), I don't see anything concerning. She's had spanking fantasies since childhood, she never stopped thinking about it, she writes stories about it; the fact that she has a spanking partner in a BDSM dungeon doesn't, in and of itself, worry me.
Many people think that BDSM is about control and power, but really, it's about trust.