Would it not be cool (not to mention adding some variety and highlighting the social hubbub going on behind the videos) if we could promote comments to the front page?

I often find interesting new videos via Newest Appreciated Comments but if you could promote a cool comment it would be clearer with less truncated text and allow particularly outstanding contributions to be fully appreciated.

I'd suggest only one comment at a time hogging space so as to avoid the page becoming too wordy. Nor could you self-promote.