Gentoo's response on them blocking access to their forums via Tor

[Evert <evert@xxxxxxxxxxxx>]

Tor network servers banned on the Forums
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The Tor Network[7] is an anonymous Internet communication system that uses
a distributed network of servers to bounce communications around. People
were able to use tor to browse the Gentoo Forums[8] until some malicious
users started abusing the forums. As you might have already guessed, using
tor hides your IP address, so it works similarly to a kind of anonymous
posting. The gentoo forums staff[9], due to this abusive use of tor
servers, has decided to ban all tor servers that have an exit policy
allowing connections to forums.gentoo.org on ports 80 (HTTP) and/or 443
(HTTPS). We are concerned that our users might want to preserve their
anonymity, however there doesn't seem to be a good technical or legitimate
reason[10] to use tor on the Gentoo Forums.

 7. http://tor.eff.org
 8. http://forums.gentoo.org/
 9. http://www.gentoo.org/proj/en/forums/
 10. http://forums.gentoo.org/viewtopic-t-365013.html

In an effort to purge the abuse of the Tor Network generating the least
problem to our users, only Tor servers with an exit to forums.gentoo.org
on the ports above stated will be banned. If they have those exits
removed, they'll automatically be unbanned. Please, notice that this
process of retrieving the list of Tor servers is performed automatically
and that it might take a while to have the ban-list synced.