There are now two kinds of Reply: There's one button for "Reply" that gives you a blank reply form, and another for "Quote" that quotes the previous post.

This is a beta test of a feature that will be introduced at Comicboards, where many of the posters believe that forcing quotes in every reply is obnoxious.

I'm also currently working on a clickable link that will (hopefully, if I can overcome technical hurdles) ) allow you to quote directly from the frame at the bottom of a reply post.