Who is this?

Since December 25th at about nine in the morning I've been having some really strange requests to my blog. They are coming from literally hundreds of different IP addresses (all seem to be DSL ip addresses) but all requesting the same few pages.

A tiny white ghost
Human Rights Violations
A Funeral for the Iraqi Civilians
AYEEEE, So much to do
No Lazzies

The only constant (and what I'm using to send them 403 Forbidden messages using mod_rewrite) is the User-Agent:

Mozilla/4.0 (compatible; MSIE 5.5; Windows 98; Win 9x 4.90)

I've done some checking and no one has anything to report as far as what these people are doing other than taking up bandwidth. Their User-Agent is prolific over the Internet. I've had over 2000 requests in 2 days from that particular User-Agent and they show no signs of stopping. I'm thinking about redirecting them here just so it takes them a bit do download the page but that wouldn't be nice of me.

The only thing I can guess is they are trying to scrape email addresses from my site. Bastards!