Interesting theory. Makes sense.
This is just a working theory but here it is..........
I was thinking today about the guy who was a key figure in one of the race circuits, I believe it was Formula One, or that's what came to mind anyway.
It was many years ago. He went to a specific agency or brothel (or whatever) to have a really, really twisted fantasy played out. Several women dressed in Nazi outfits spanked him, along with other stuff that was over the top. Maybe enemas or whatever I don't recall all the details. It was caught on film by the way.
He went there specifically because they would do that for him. How many places would cater to that kind of thing? Some would but not very many, and on top of that would give assurances that he would not be known by any of the "actors in the play". How far would he go for that?
How far would Kraft go for whatever he wanted?
IMO there are elements of that here. He went to a very specific and hidden away place on at least two occasions, and there is a real possibility of more than that, for a reason that mattered to him. Anonymity for sure, and perhaps something kinkier, or something that would be considered unsavory enough that he had to find a safe spot for the deed.
Anyway, just a thought.