I have been looking for a plugin like this one, and this seems the best one.
Before installing, I would like to know some things:
1st, how does it look like after logging into an account? The name and email disappears?
2nd, when someone publishes with that account connected (let's say, Twitter), a tweet with the link to that comment is published? Also, if it's not added, could you add a Twitter handle (example) so every tweet with the link to the comment is also a mention to someone (the company's Twitter account, per example)?
3rd, how does that connection appears in the "Comments" admin page?
4th, can I enable only connecting from comments? I mean, I don't want people to freely register or log into my webpage, I must give them an account. Can I disable those features so people can only add their identity on the comments?
5th, in the future, could you add some fields (or Connect buttons) in the "Profile" admin page (for every user) so registered users can add their networks, and you could even put a link or image on each author frontend page so everyone knows their profile?
Thanks a lot! Answer what you can :)