Scored a 79. I was thrown off by a few. For example, I know that cattle are fed "recycled" nitrates, but the "recycled dead pets" thing seemed (and still seems) more like an urban legend. I didn't know what carmines were (I'd never heard of them before). While I answered the question about surgical procedures incorrectly, that was more because I felt they would at least be checked to see if they were safe or effective than because I thought they had to be proved so. I also didn't know about sodium nitrates or gas hydrates. I find the "patenting human genes" thing extremely iffy, not because I have any faith that someone wouldn't try to patent it if they thought they could get away with it, but because if they actually tried to charge people with "patent violations" for having children, nobody would stand for it (in other words, whatever they might think, they're not so foolish as to actually try to charge parents fees for the "patent" they hold). And I also find the "cure for cancer" thing to be iffy.
It's not bad for entertainment, but did anyone else notice their links for other articles on their site, as well as the ads for their "Spam Filters" book? In other words, while I don't doubt much of what they say is true (I've found confirmation of some things elsewhere), I'm not so gullible to believe everything without verified sources.