I think this kind enforcement can only hurt sales. For example, one might be more reluctant to buy multiple items from from either a model, or a Music group only because you were given the opportunity to first sample the items free. This is bad for business.
I'll say this, I have no problem paying for things, and never did. However as someone else mentioned, there are many JP merchant-stores, and domain blocks from the outside world accessing Japanese sites, and I'm sure there are good reasons. But what worries me most about all this is that people outside of Japan who really appreciate this content will be isolated and left out with lesser options to buy. It's really sad.
.. I just hope that our friends to the east will keep a candle in the window for those of us who want a way back home.