It's either you should be able to mention someone responding him/her. Or having your comment listed under their comment specified as a respond .... The current system is rather weird :l
sort by best latest
I only had 6 comments and making 6 responds addressing 6 diff. names making them go through all 6 of them looking or their name :D ... it just sounds stupid. and user experience wise, it's wrong. But I'l go with your one reply way :D
I actually have had a few conversations between folks over several comments, and it would be awesome to have those threaded, too. :)
It really sucks .. like what if I had 50 comments? people will go through 50 responds of mine looking for their name? it's absurd.