On Fri 18 Feb 2005 01:35:03p, Yeff wrote in rec.food.cooking:

> On 18 Feb 2005 20:17:23 +0100, Wayne Boatwright wrote:
>
>> It's sometimes better to eliminate posts by topic content than by poster,
>> as the poster might write on many different levels, some of which you'd
>> want to read.
>
> Or, with some of the more sophisticated readers, kill by crossposts. Even
> limiting RFC to only two crossposts eliminates a lot of the crap,
>

Xnews also has this capability and I also use it, in addition to the score
file.

SPAM and other undesirable posts are not always cross-posted.

Wayne