I set up this email account that I use exclusively for Usenet about 2 years
ago, I post to 6 or 7 groups, and I'm currently getting about 25 spams a
day.

You mean "once your address is in one of the thousands of web/usenet/mailing
list harvested email databases it NEVER EVER gets removed".  Why would the
users of those databases bother?

Greg

According to C J Southern <spamreport@xtra.co.nz>:

    I can testify to that.  I had an e-mail address with the same
username but a different domain (one belonging to a friend, from before
I got my own domain) back around 1985 or so.  I *still* see that address
show up in the "To: " or "Cc: " header from time to time, along with my
real current address, which is why I see it.  So I can tell you for sure
that e-mail addresses which are over twenty years out of date are still
being used by spamers.  

    They don't care -- it doesn't cost them anything, because they
are sending from "zombie" machines -- user's machines which were
compromised by viruses and which installed software to lett the spamer
use the machine for things other than what the owner would approve.

    Sometimes the "From: " address, and the "Return-Path: " address
match the actual machine owner's address, but usually they are other
addresses out of the spamer's database.

    I wish that some law would be passed declaring open season on
spamers -- and on vendors who hire spamers to advertise their products.
That *might* discourage them -- the survivors, at least.

    Enjoy,
        DoN.