Spam vs. Anti-spam... the war escalates. This is an attempt by spammers to defeat the content filters that the new generation of spam blockers are using. Spam filters based on Bayesian algorithms try to determine the context of words that may be possible spam triggers.

If an email contains little more than "Enlarge your body parts! Click Here to Buy!!!" then it's pretty easy for a program to score those words and zap the message as spam. But if that text is buried in an avalanche of meaningless text that has nothing to do with anything, the job of determining whether or not a message is good or bad becomes much harder.