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.

>62
Kolo zbala.

Anyway, the isp ban problem should solve itself shorty. It's isn't much an issue for me tbh, I rarely post anything.

I would probably upload my proxy script on some free hosting site and use it for personal 4chan browsing, but that's a worst case scenario.