Re: Meanwhile...
They're behind Cloudflare, who definitely support v6. Actually you can reach El Reg over v6 with the appropriate hosts file manipulation, but the last time I tried to make a forum post when doing that the post apparently got wedged and had to be manually removed.
(Cloudflare do support an option that hashes v6 addresses into 240/4 and uses the hashed address as the apparent source address of the inbound connection, which should work around databases with incorrectly-sized columns or whatever the problem is...)