One of the things that I have always loved about blogging on LiveJournal is that it lets you know via email when someone has replied to any comments or blog posts that you make. This email notification encourages blog postings to turn into actual two-way (or three-way, or more-way) conversations in a way that other blogging platforms have never equalled.
Now – you will notice a little check box whenever you leave a reply to a post here. If you opt in, you will be notified via email about any future replies to that blog post.
I also considered the similar Comment Reply Notification plugin, but it does not allow readers to ever unsubscribe to comments in the future, a pretty serious limitation.
Subscribe to Comments on the other hand provides a subscription management interface that lets you opt-out easily on a post-by-post basis in the future.
Let me know what you think – feel free to test it out by replying to this post!