A bit 
about Families Need Fathers. As far as I'm aware, DS is better off without his alcoholic, abusive, misognistic father in his life. If the group was Families Need Responsible Parents, I'd agree with it.
Now, HRH, I'm aware you said DSD admitted to lying. I'm not going to say she's lying about lying, as I wasn't there, at the time. The problem I have is that you're using it to justify the view point that Bristol may have lied.
Lied about what, exactly? Bristol has described a scenario which may or may not have been consensual (albeit drunken) sex. She hasn't said "Levi raped me." Those words were put on the page by someone that read the passage. How can Bristol be lying if it was someone else that said it?
Rape victims are already accused of lying in the courts, by families, by the media... I had hoped I'd never read it on the feminist section of Mumsnet. Because, to me, it doesn't sit comfortably.