Why are we just speaking of subs here? Aren't there any Dom/mes out there that were abused in their childhood. I'm sure they've grown into fine upstanding people and maybe dominating helped set them free.
I think it's wrong to not take on a sub because they came from an abusive background. I don't think jiggy was referring to childhood abuse, but abuse from other Dom/mes. I think Dom/mes need to watch over their subs very carefully because we put a lot of trust into them to not abuse us. Dom/mes shouldn't take wrongful advantage of their subs, but unfortunately some do and the subs get put off of this lifestyle, but some come back. I believe that those that do come back find better relationships and become better people because of it.
I personally have never been abused, childhood or in this lifestyle so I can't really speak on the matter. I've suffered emotional abuse at the hands of vanilla partners, but nothing physical.
jiggy said that if we no someone is being abused, it's our responsibility to help them. A lot of times, those that are being abused will fight you tooth and nail because they think they aren't. A lot of times people get blinded and don't realise what is really happening. That's happened to me before in one or two of my relationships. You don't realise you're being abused and the one day it clicks and it's still difficult to get out.
I agree with what ceegee said about the Dominant's Creed. Dom's shouldn't not take on a sub because of her/his back ground. No matter his/her back ground the Dom (if a good and true Dom) should be able to help that submissive become a better person and enlighten them to the way our lifestyle really works.