Cloudflare publishes these marketing articles, spinning them as "helpful" for the community. The biggest community help Cloudflare could provide is kicking booters [1] from their network. They won't however, since it needs to protect the booters for Cloudflare's business to prosper.
1. http://whois.domaintools.com/booter.xyz
(Repeat this whois search for the top 10 booters found in Google)