Merge branch 'doc/9398-irc-blocking-tor' (Closes: #9398)

wiki/src/doc/anonymous_internet/pidgin.mdwn

@@ -92,6 +92,17 @@ the message is notified by a warning.
 
 </div>
 
+IRC servers blocking Tor
+========================
+
+Some IRC servers block connections from Tor because
+Tor is sometimes used to send spam.
+
+- [Accessing freenode Via Tor](https://freenode.net/irc_servers.shtml#tor)
+(the hidden services mentioned on this page are sometimes unavailable)
+- [OFTC and Tor](http://www.oftc.net/Tor/)
+- [List of IRC/chat networks that block or support Tor](https://trac.torproject.org/projects/tor/wiki/doc/BlockingIrc)
+
 Random username generation
 ==========================