"skip this page" makes all pages from that domain go to the back of the queue, it's a signal that the given domain sucks.
Everyone does have a different idea of quality, which is why I don't filter *too much*, with skipping and a little time you should be able to ignore most of the regular crap in your niche.
On the commenter page, check out the browse links, for a whole site, or per keyword, you should be able to quickly glance at titles and various stats and decide which pages you want to investigate further in the commenter view.
Happy 4th July, Americans!