No problem. I'm just now starting to use it. Til now, my responses were so few that there really was no need. A couple of things I'm not too keen on: it only shows the comment, there's no context. It's hard at times to know what I'm responding to exactly without manually opening the entire thread in another tab (and kind of defeating the whole purpose). And two, when the responses are cleared, the notifications still show as unattended on things like peakd. It may well be user error on my part though.
RE: Commenting on commenting.