In reply to Sudhir Khanger.

I believe that's coming in a future update but, yes, it's all or nothing.
Which, to be fair, makes more sense - the beauty of comments is to take part in a bigger discussion about the post. If you just want replies to your own comment, it's essentially saying you don't care what anyone else thinks.

May as well just tweet the blogger or similar, for that one-to-one option.
:)