If this post proves that the real Satoshi is indeed alive and keeping tabs on the evolution of bitcoin, does this concern anyone else that he can still do anything, at anytime, with his mountains of coins?

We have known that this has been a possibility all along, but if this post is authentic, it means that he hasn't simply "walked away" from Bitcoin and is still keeping tabs on it. It makes me a little more uncomfortable to know that one person with that kind of capital leverage is quietly observing everything......