Correct, CloudFlare is not a website host. They host DNS for you. Basically CloudFlare acts as a reverse proxy.
I understand, the whole open source thing. CloudFlare supports open source. See:
https://blog.cloudflare.com/open-source-two-way-street/
So basically Cloudflare hosts your domain name for you.
Benefit is that everyone gets SSL for free, IPv6, and SPDY. Would make me very happy. World is going all SSL 24/7 thankfully. About time. Cant wait until browsers drop support for http. ha! That will be the day.
I know your not hosting private data on nzbget.net but still. It's free, so why not. And CloudFlare is huge.
Don't think you really need to worry about them disappearing. Lots of big sites on CloudFlare, such as stackoverflow.com and reddit.com.
About forums. Whoops. Your right. Forgot you are still on sourceforge. Unless they let you use custom DNS for the forums I guess it won't work.
That said, but it seems sourceforge does use custom DNS, since you have forum.nzbget.net? Imagine that is a DNS entry? No?
But I understand if not. Just thought I'd ask. Thanks for your time and considering it.