[r1ch]

Search for "stress tester" and almost every ddos-for-hire site you find will be protected by Cloudflare.

[janc_]

The more DDoS there are, the more business CF gets. Take your own conclusions…

[dingnuts]

so report them? this is like complaining that their domains are registered by GoDaddy, or their packets are delivered through the Internet by hurricane electric, or their local power company keeps their lights on

[jsheard]

From what I've heard, if you send an abuse report to Cloudflare they just forward it to the owner of the service you are reporting, without redacting any personal information you provided, opening you up to reprisal. They won't actually do anything unless legally mandated to.