> And you can be sure some people staying there will try to push the "lewd act" boundary for fun, bringing in more views.
> Ultimately, this will be a better advertisement for that hotel than comparable money can buy online.
Until someone does go too far, and the hotel finds out that they're expected to police these livestreams to ensure certain meeting certain standards that are wide and seemingly arbitrary, and the hotel becomes liable for the behaviour of one of their guests.
Japan has a lot of rules and regulations around what can be seen, produced, etc. for sexuality, just as a small example.