If you are starting a new social media service, for instance, the N^2 dynamics are brutal and you have to work so hard to attract, onboard, and retain each precious user. A site that has momentum is practically impossible to kill and, barring a really enlightened form of benign neglect (Craigslist?), you will eventually go into a "harvesting" mode for either money or social impact.
https://www.amazon.com/Uncoupling-Turning-Points-Intimate-Re...
If you are starting a new social media service, for instance, the N^2 dynamics are brutal and you have to work so hard to attract, onboard, and retain each precious user. A site that has momentum is practically impossible to kill and, barring a really enlightened form of benign neglect (Craigslist?), you will eventually go into a "harvesting" mode for either money or social impact.