Earlier quoted context omitted.
As pg tries to explain, it's not a YC company but a charity he supports (and therefore knows about) and it's also one that he thinks can help people get (afford) medical treatment.
It doesn't matter whether its a non-profit or for-profit, charity or business, or whether pg personally benefits from Watsi flourishing. He's using the events in Boston as a way to promote a service that has nothing to do with the horror occurring in Boston. I'm not saying Watsi isn't great -- it is. But this isn't the time or place to call attention to Watsi. It's tasteless and rude.
Orders of magnitude more people will die or be injured today from gun violence, car accidents or disease but 99.9% of them will not make the news, a reminder of this is anything but tasteless and rude.