Most solutions will inevitably break when used at scale. These are two recent examples.
AirBnB’s network scales to extend it starts disrupting entire neighborhoods
https://www.bloomberg.com/news/articles/2019-11-06/miami-beach-airbnbs-top-market-in-u-s-as-charlotte-grows-rapidly
Political campaigning on social media gets way out of control after politicians attempt to scale up the method which got President Obama elected to office
https://www.bloomberg.com/news/articles/2019-11-07/google-considers-changing-its-political-advertising-policy
Technology eco-system scales up operations in California thereby triggering the housing crisis.
https://www.bloomberg.com/graphics/2019-california-housing-crisis/
Moderation and self restrain is not common when caught up in a winner takes all situation