Holy crap. I just realized after all this time that the arrow next to the "Replying to" box expands into the full quoted comment. #UIFail. :D
There is a tricky little shortcut you see @yaypie and I using: if you highlight some text in the post you're replying to, we will automatically highlight that snippet as you see above 👆.
I believe you with Reddit learnings. Can I call? I just sent you a friend request on Facebook because we haven't built private messaging yet (too many things!).