Banned from /r/?

Can anyone think of a reason i might be banned from /r/. Despite never posting, not only in /r/ but on any board whatsoever?

Don't know for certain but seems BT/NTL people may be banned from all img boards atm. Try checking if you see the banned message for other img boards (ie /b/, /t/ etc)

Well all I've been getting from /b/ for a while has been a 404 message, which I assumed was because of the BT/NTL thing but it does look like I'm banned from /t/. Oh well...