ISP blocked due to abuse?

Well, it seems today that I'm now unable to post anything over at the 4chan imageboards, otherwise I get this message:
"Posting from your ISP has been blocked due to abuse. [More Info]"
I can still browse the site, all the images and threads load fine, I just can't post. What gives? I've never posted spam or porn.

Guys, do what >>14 suggests and head into the IRC channel. Mods are the names with @ and % symbols next to their names. Just say them when you enter chat. Also shoot moot an e-mail: moot@4chan.org

Heh, didn't realize we have people from Egypt posting on 4chan!

>>35
Oh, and mods always have their nicks online, but they might not be physically at their machines.