A few years back YouTube didn't support the sharing of playlists. In-fact creating playlists took far too many clicks. Fortunately, their API support was good a

A few years back YouTube didn't support the sharing of playlists. In-fact creating playlists took far too many clicks. Fortunately, their API support was good and I built a 3rd party playlist builder, which worked brilliantly. I built it for myself and didn't care if anyone else used it. Turned out people did use it, but I didn't find out until YouTube changed their APIs and I no longer had time to work on it. A few years later, I learned that most Craigslist ads sucked. So, I created a simple "make your craigslist ads better" tool. You'd go to the site, fill out a much better form than the one Craigslist provided, and it'd spit out a much better ad that you could copy and paste. Then, whenever I saw a car ad that was crappy, I'd message them with a link to my tool and ask them to update the ad. People did it and it was growing organically. I was glad that people found it useful.. it was free and going to stay that way forever. Then I got a Cease and Desist from Craigslist.. for using their name, I think. They've made similar boneheaded decisions.. no wonder they're declining.