"Refuse to grow old: take this and live forever"
"Master of diplomacy online!"
"North East Intelligence Network is a vital anti-terror website"
"New World Order? Learn about Bible Prophecy NOW!"
I judge the quality of a source by the sketchiness of the advertisers, so by the looks of it, we have no reason to be worried.
For Usenet posts, you can always tell the crazies if an answer that usually needs 3-4 lines, is instead 100 lines of crazy babbling and indented quotation. On our Butcher Holler NG we call em all "Borgie" instead of their given name, as theyve obviously "assimilated".