What makes you think or how do you know she was once a he 
Read the thread you're commenting on man, I don;t know what to tell you if you can't even be bothered to do that much research before sticking your cock in.
I don't have proof (why would I know for sure unless I actually carried out the surgery?) but I will tell you two things.
1) I was told there were two trans M2F in my current workplace (more than 500 people) but I wasn't told who they were. I guessed them both correctly, it took me a while, but I got them.
2) let me give you a trick. sort of squint your eyes and look at her pictures again. Imagine that, instead of looking at a woman, you're looking at a not-very-convincing man trying to pass as a woman. It is screamingly obvious to me that this is the case for this SP. Can you really not see it?
This is all on top of the telling details in the original review, which overwhelmingly clinch the deal for me.