As great as it is to have a community that cares about an individual, _why was very happy to stay anonymous, and a few comments here purport that his sudden disappearance resulted from someone penetrating that anonymity. If that's the case, calling him (assuming that number is accurate) could be counterproductive.
But the supposed outing happened over a month ago. I doubt he'd wait this long if that were the reason for his disappearance.
I don't know the guy, and am not involved in the Ruby community. Nonetheless, that someone would call to make sure he's OK speaks volumes to me of his presence on the Internet.
