Spam filter / killfile rule

[Thomas Shaddack]

There is a problem here how to killfile (or spamfilter) the more repeated
nothing-saying posts without losing also his good stuff as the collateral
damage.

The good ruleset could be (translate to the syntax of whatever you use):
Sender: timcmay at got.net
Body contains: smoke
Body contains: chimneys

A specifically tweaked Bayesian filter could be maybe an option too.