Actually, I think you're thinking too small here.

I mean, if you're going to invoke your dom!Beemer Aspect, it might as well be for all the marbles, right?

Screw threading. Comments should be hyperlinked. With the ability to create a target point within the thing you're linking to as part of the link.

Because sometimes you're responding to more than one comment.
And sometimes you're responding to the seventeenth paragraph in a twenty-five paragraph comment.
And sometimes you're not really responding to a comment at all, but you want to refer to it anyway.