[ndiddy]

I'm not sure about Cloudflare. Their free tier vastly reduces the barrier to entry for setting up a DDoS as a service business (without it you'd need to have very expensive hardware for circumventing DDoS attacks, as otherwise you'd get DDoS'd by your competitors). This in turn increases the demand for Cloudflare's services to protect against DDoS attacks.

[everforward]

I'm not saying they're good for the internet, just that if I was going to make a bet on which one is more likely to survive a decade, it'd be Cloudflare.