Hey guys. Is there a plugin out there that can easily notify a user of a follow up reply to their comment? I used to use subscribe to comments but it hasn't been updated since 2007. Also, I think I remember being the 'unsubscribe' process to be pretty tedious or confusing. I would like it if each email had an 'unsubscribe' link at the bottom which instantly unsubscribed the user from that notification thread.
I would like to continue using the WordPress comment system. I don't want to substitute it for something else like disqus.