[naterator]

Old people, man. And the people who take care of old people. I know it's not typically HN target demographic, but old people need improvements in their lives, too.

[tptacek]

Not old people. Teachers. The distinction is vitally important. BCC solves a professional problem that teachers will pay money for. It's not about entertainment.

[ams6110]

I thought BCC was aimed at teachers? Various implementations of bingo are commonly used as teaching aids, test review games, etc.

Though I agree I'm amazed at its success. It's one of those ideas I'd have dismissed as "you could never make money doing that."