I’ve upgraded to OpenID Comments for MT 1.6.1, the latest version of the Movable Type plugin which adds support for OpenID and sign-ins through LiveJournal. The biggest change is that the plugin will now parse a FOAF file found at the OpenID server and retrieve an avatar should one be provided in it, which means that comments posted with OpenID will now have avatars. They haven’t in the past because OpenID does not send email addresses, which are needed for Gravatar which provides the existing avatars.
I am considering re-organising the comment form to emphasise that I would prefer people (especially regular commenters) to use either TypeKey or OpenID. By doing so, I can ‘trust’ individual commenters which means that any comments they make will bypass the spam filters. Though the spam filters work well, and do favour regular commenters, it’s possible for some comments to not get through if the comment comes from an IP address on an IP blacklist or mentions things like mortgages or medicines lots of times. This means I have to manually approve them, which usually only happens once a day and less if I’m busy – trusted commenters can essentially say what they like and it’ll be posted immediately.
I will keep TypeKey as a separate option because it supports gravatars (I think OpenID Comments has an issue with pulling FOAF documents through TypeKey, possibly because it uses relative instead of absolute paths) and because it allows email addresses to be sent, which in turn means that commenters can subscribe to recieve notification of any new comments posted by email. I know that quite a few TypeKey commenters use this, though I will look into alternatives – MT-Notifier may support something that I can leverage.