Split this off from the CO voting topic.
(sidenote: anyone having troubles using "insert quote" function? seems to not function for me)
It's working for me. Any errors in your JavaScript console? Which OS, OS version, browser, and browser version?
Wait what? How does the Quote butotn work for you? Both the "Insert Quote" in the reply screen as well as the normal "Quote" button when using quick reply works in the same way for me. Maybe it's a setting I have enabled?
The "Quote" link on a post should move you to a new page and start a new reply composer.
While in the reply editor, the "Insert Quote" links below the composer should simply insert the post quotes into your current reply composition.