Why are we blocking some addresses any access to the wiki?

Calum Jackson <[email protected]>
Newsgroups gmane.linux.debian.devel.www
Message-ID <[email protected]> 
It seems every day a new mail comes in about someone getting a 403 forbidden when trying to access the wiki through their proxy server or VPN, or even just their home address.  Now, edit-blocks would make sense, but we already require any prospective wiki editors to email in to make an account.  Why is it that we ban entire IP ranges from even reading the wiki?
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