I agree that it's a good idea for Nutaku to play it safe. Hellfire Girls and the Luv games are probably safer for Nutaku than the other titles it has because of it being based on live-action porn rather than animated porn.

There is one other taboo that Nutaku has to play it safe with, and that's rape. It hasn't been that long ago that lobbyists and politicians were getting angry over RapeLay, and we're in the middle of an election on top of that. The goofy storyline rewrites we're seeing show up are going to continue being needed in order to keep Nutaku and its players from potentially getting hauled up before Congress and into the national spotlight.