And I still don't see why the original post has to be included in the new reply page. IMHO, better an option to cause a new window to be spawned when replying, and where the window goes away when Post is hit.
The original comment is included in the form because spawning a new window is not an option: it confuses people and some limited browsers cannot spawn windows (WebTV.) If the inclusion of the original comment proves to be a bother, I'll make it an option.
I've never seen that work smoothly.