Definitely. Here's a small sample. Craigslist unintentionally decimated newspaper revenue from classifieds. http://www.forbes.com/sites/jeffbercovici/2013/08/1

Definitely. Here's a small sample. Craigslist unintentionally decimated newspaper revenue from classifieds. http://www.forbes.com/sites/jeffbercovici/2013/08/14/sorry-craig-study-finds-craigslist-cost-newspapers-5-billion http://www.forbes.com/sites/jeffbercovici/2013/08/14/sorry-c... Twitter unintentionally created opportunities for crazy levels of harassment that bleeds dangerously into the offline world. https://www.buzzfeed.com/charliewarzel/a-honeypot-for-assholes-inside-twitters-10-year-failure-to-s https://www.buzzfeed.com/charliewarzel/a-honeypot-for-asshol... Facebook unintentionally created an industry of hyperpartisan factless discourse that may be fueling demagoguery worldwide. http://www.nytimes.com/2016/08/28/magazine/inside-facebooks-totally-insane-unintentionally-gigantic-hyperpartisan-political-media-machine.html http://www.nytimes.com/2016/08/28/magazine/inside-facebooks-... That's just off the top of my head, without getting into companies like Uber & AirBnB, or ad targeters, etc. All of these companies provide incredible value, and I mostly prefer to live in a world with them than without them. But it would be great to see more effort put toward mitigation of their unintentional excesses (and to their credit, all three are trying at least a little in various ways).