Not sure if this is the right place to ask this, but if not, feel free to relocate it
If I set up my local BIND cache server to use OpenDNS Servers as its forwarders, what do I get if I don't register with OpenDNS? Do the servers automatically blacklist anyway, or only if you register, and set up your own blacklist? I've read OpenDNS's web pages and I'm still not certain....