Suggestion Box

I don't know if this has been brought up before, but just in case it hasn't , I think it would be so much easier to reply to comments directly in the journal and have an email sent to the inbox so the poster knows that his/her comments have been replied to. Does that make sense? Kinda like the LJ format.
I say this because I sometimes end up missing comments sometimes directed at me in other people's journals. I have no way of knowing unless I go back there to check - and that can be a pain sometimes (especially if the post was written weeks ago).