Detecting Anonymously Registered Domains
Yes, a human can look at the standard whois database. A mail server cannot easily do that. If you would RTFA, you would see that it is a DNS RBL that your mail server can query.
Sure, you could write a script to do that, but if someone hits you with a spam run, you're going to get banned from the whois databases pretty damn fast.
Time Warner Recommends Internet For Some Shows
You can order Road Runner al la carte for $49.95 in my market
Slackware 12.0 Released
fred's at Akademy, but i'll get on his case for you :P