Maybe I am completely wrong here, but what does it matter if the "five" were or were not prostitutes?
They were women, who were out on the streets of Whitechapel, or in the case of Kelly just a woman who lived there.
They met the most horrendious amd brutal of deaths and it matters not one jott if there were or were not prostitutes does it!
If Dr Rubenhold has found new information on the ladies, thats fantastic and all power to her elbow, i missed the recent talk, having relovated to Glasgow, and two visits in 2 weeks was just not possible.
Lets wait and see what the book tells us before passing judgement,