That's why I said "one factor of many". If you have ten factors like that and combine them, you'll get an excellent spam filter. That's how Bayesian spam filter

That's why I said "one factor of many". If you have ten factors like that and combine them, you'll get an excellent spam filter. That's how Bayesian spam filters work. They combine a number of factors that are not very significant on their own, but using all of them adds up.