Terrell Russell: This Old Network

Joseph Petviashvili (krotty), creator of the Skype-based Bitchun Society, writes today about his detection that LiveJournal is leaking his auth info via the check_immediate feature in OpenID. I haven’t seen any other discussion of this. Can anyone confirm?
open id from livejournal is not safe
If you are logged in to livejournal, that information can [...]