Probably the reason for a "no review" request is that they may be on the LE radar. I.e. I do recall a few times at establishments over the years that have gotten visitors while I was on the table, and the provider I had seen many times before covered me with a sheet and went "legit masseuse". When an out of the way spot gets too much action people (especially nosey neighbors) tend to take notice. I'm with the rest of the boys who are for "post at will" but I would offer this advice....if they have these things posted, just be a little more subtle, use code words, honor your brothers in arms, while being respectful of the house's wishes. Who really wants to go to their favorite play spot only to leave with blueballs because the place gets shut down?