AFAIK, YouTube started as a dating site and then pivoted based on actual usage patterns. See https://www.cnet.com/news/youtube-started-as-an-online-dating-site/

AFAIK, YouTube started as a dating site and then pivoted based on actual usage patterns. See https://www.cnet.com/news/youtube-started-as-an-online-dating-site/ https://www.cnet.com/news/youtube-started-as-an-online-datin.... The whole thing wasn't built to become what it did. That's why you shouldn't build (too much) before starting to sell.