Re: How did this spam get by

[Scott]

There are very few, if any, sentences in the english language that are 15 
words long that don't contain at least one word with fewer than 4 characters.

I haven't had a single false positive from this rule and I've been using it 
for a month now.  YMMV, of course.

-Scott
Mark A. DeMichele wrote:
How safe are these random word rules?  Should I be afraid of false
positives?
Am I understanding these correctly. Basically, you're looking for a
sequence of 10 (or 15) words that don't include, "from" or "even", etc.
If so, it seems scary to me, but I'm just a novice.
body RANDOM_WORD_10 
/(?:\b(?!(?:from|even|more|that|this|were|with)\b)[a-z]{4,12}\s+){10}/
describe RANDOM_WORD_10     string of 10+ random words
score RANDOM_WORD_10        1.6

body RANDOM_WORD_15 
/(?:\b(?!(?:from|even|more|that|this|were|with)\b)[a-z]{4,12}\s+){15}/
describe RANDOM_WORD_15     string of 15+ random words
score RANDOM_WORD_15        3.8

There's an unintentional line-break there.  body, describe, and score
are the 
only three lines per rule.