Snap's fate was preordained because of the vice grip Google and Facebook have on online advertising. The only way to deal with market failures is aggressive antitrust enforcement. The EU has begun and others are sniffing around [1][2]. Democrats are starting to relearn the politics of trust busting [3] and candidates are starting to run on antitrust platforms [4]. If you work at a startup and you don't want your opportunity to be foreclosed by monopolies, you should support them.
[1] https://www.nytimes.com/2017/11/13/technology/missouri-googl...
[2] https://www.reuters.com/article/us-israel-antitrust-internet...
[3] https://washingtonmonthly.com/magazine/novemberdecember-2017...
[4] https://twitter.com/AustinFrerick/status/950149470863417347