Failure to monetize such as hypertargeted&#x2F;local ads&#x2F;deals or freemium features.<p>Winners tend to turn challenge into profit opportunities rather than give up and disappoint many people when they had something sizable which could be sold to someone whom can fix it or fix it themselves.<p>Too often, when people whom are uncomfortable with uncertainty and don&#x27;t know what success looks like, they give up and throw away opportunity which may never come again because of their past behavior &#x2F; reputation for not finishing things.  My cousin nearly had a florist shop by having tons of orders, but gave up when he didn&#x27;t know what to do by feeling overwhelmed... and I was so disappointed that he didn&#x27;t handle it better to come out ahead in something he had passion and opportunity that passed by.  (Self-sabotage or novice mistakes, who knows.)<p>I see these shutdown notices not as some self-deprecating contrition but as braggging about letting people down, destroying value and wasting their and all their customers&#x27; and investors&#x27; time and money... don&#x27;t shutdown when you have a good team and customers, pivot or sell. (Don&#x27;t squander assets:  talent, social or capital.)