I think erlanger was talking about an inbox like reddit's where it just shows replies to your comments. A messaging feature is a little different and the messages would be private like email.
that and a search would be welcome additions. messaging is kinda pointless, but the little envelope that changes color when you have a reply is a fantastic usability feature. search would also be nice but can be pretty easily done with google...
stupid me. just realized that the "threads" link does what i was looking for.
With regard to a messaging feature, it might be nice to be able to contact some people here via email (or allow yourself to be contacted) without having to reveal your email address in your profile.
Oh yeah. I'd totally like that too! (In fact, I just made a mention about how nice it would be yesterday)