I know this is slightly off-topic for HN, but I feel that many here could learn from the man's life. His passing robs us of a salesman who had perfected the art. No, you shouldn't go scream at people to use your app, but you can find a style of sales that is in sync with your personality like Billy did.
FWIW, I think the YC consensus is that he's no "peeler guy," a real market hacker: