badexpiry - find newsgroups with odd use of explicit expiry dates
SYNOPSIS
badexpiry [ mincount minsize ]
DESCRIPTION
Badexpiry reports (on standard output) newsgroups
with suspicious patterns of use of explicit
expiry dates in articles.
Specifically, it reports groups with more than
mincount (default 15) articles,
more than 90% of all articles,
or more than
minsize (default 500) KB of articles having explicit expiry dates
more than 10 days after their arrival dates.
Such reports are not necessarily indicative of abuses--for example,
news.announce.newusers legitimately has most or all of its articles on long expiry--but
investigation may be in order.
