Hacker News does hit the CF proxy and was affected.
$ host news.ycombinator.com
news.ycombinator.com is an alias for news.ycombinator.com.cdn.cloudflare.net.
news.ycombinator.com.cdn.cloudflare.net has address 104.20.44.44
news.ycombinator.com.cdn.cloudflare.net has address 104.20.43.44
Hacker News does hit the CF proxy and was affected.