You'd be surprised if you went to meetings with porn business companies in Japan. Stylish offices, elegant suits, great manners, no hint of actual porn anywhere. In fact, you could easily confuse the office with an investment bank.
This was all being discussed in the context of a fairly formal business meeting.
Some very interesting insights from the hotels side of things.
If I kept track of the porn watching habits of my neighbors, that would be considered strange and maybe rather pervy. And I don't see how it makes a difference in that evaluation whether they are or aren't renting the tv they use from me.
In any case, they probably have no need for individual statistics: the aggregated watching habits of guests is enough to provide useful information.