I will just say one thing, I went to a health centre for an allergy test the other week, the guy who did it was also a therapist. We got talking about some of my long term problems and quite deep familly issues and he relayed some of his personal stories onto me, not in depth, but he mentioned that what i had gone though, he had also had simliar experiences as a boy. I was a bit shocked to be honest, as i thought it was in the 10 rules of therapy or something that a therapist should never do this. But it did make me see him more on my level, made him seems more human, and I felt like as he had experienced simliar things he could help me more. But also a small part of me felt that he wasn't compltely 'over' his events and if he wasn't, how was he supposed to help me?
I have had a councillor and a psychoanalyst before and they never admitted to me any of their problems or told me much about themselves, i think this made them come accross as a bit 'perfect' like they had no problems and i could see why this would be an advantage if they are supposed to help you with your issues.
if a therapist of some sort actually broke down or seemed quite upset whilst telling me one of their problems i would definitely be thinking that it wasn't a good idea to see them for help.
EDIT: obviously the subject matter i have mentioned is not the same as yours, i have not suffered rape or sexual abuse and so dont know if that changes anything or how i would feel about disclosure in those instances. i *think* i would have the same opinion.