I've been banned by Samizdata.Net!

So for the first time in a long while I try to post a comment to Libertarian Samizdata and get the message that I've been banned. I've no idea why; I've had no email from them. I can only presume some previous user of my IP address was a spammer. But I've been on NTL for 3 years now, with mostly the same IP address, so they're a bunch of tossers for keeping the ban so long.