I've got to say, the markup for the comments page is pretty ugly. I'm not going to diss the one who designed it, but I think it could really do with an overhaul. It wouldn't be difficult at all - just cascading, nested divs with incrementally increasing left-padding.

Unless there is a reason for the tables, they're not semantic, it's ugly, and it doesn't make any sense! And it's slower to render.