I've often said (well, maybe not super-often, but I have said it) that the cops know what is going on in these establishments. They look the other way until people in the neighborhood complain. Reviews containing details like those in spahunters and ampreviews are NOT how these places get busted.
Also, when a place gets busted, I am surprised at how many guys, under questioning, will tell the police what they did and how much they spent. Aside from incriminating themselves, they are providing the evidence the D.A. needs to prosecute the women working there and, if they can find the owner, him or her as well.
Lastly, I have to laugh every time I see someone refer to the "Private Details" as if they are truly "secret" and the police and general public can't see. Like it's some sort of magic place that only a few trusted select individuals have the keys to. That line of thinking is truly ignorant.
Get real people. Don't be so naive.