https://www.theverge.com/2016/10/28/13456208/why-vine-died-twitter-shutdown https://www.theverge.com/2016/10/28/13456208/why-vine-died-t... kinda suggests a mix

https://www.theverge.com/2016/10/28/13456208/why-vine-died-twitter-shutdown https://www.theverge.com/2016/10/28/13456208/why-vine-died-t... kinda suggests a mix of reasons: * vine’s founders resisted aggressive monetization * instagram added short videos and did monetize them a lot * marketers quit spending money on sponsored vines and started spending it on sponsored instagrams * twitter just kinda sat on their thumbs with regards to putting any resources into vine, the founders drifted away