While I'm understandably very wary about giving email-ids anywhere given the nasty scare of being spammed, I like the ability to be able to subscribe (via email) the comments section of any particular blog. I found such a feature here (Jeremy C. Wright).
Now that I think of it, I remember seeing RSS feeds for comments in a lot of places. But didn't quite actually dweleve into why that would be needed. Kind of had been wondering. Now, those make sense. And, coming to think of it, RSS seems to be a better option 'cos I don't have to give out email address.
Note that this is required for those who want to track the progress of comments of any particular thread they are interested in. Otherwise one would have to keep visting the actual site and click on comments section for that particular blog and keep refreshing the page :) :)
What do you think ? Which would you prefer - RSS / email ? Does the answer appear plain enough ? :)