>>pg+(OP)
marking a comment up or down should use ajax- especially so browser history is preserved (pressing the back-button to get to the front page). I assume comments can be marked into the negative range for those hopefully rare occasions where it's needed? [please don't test it on me!]. Other than that I love the minimalism.
>>papers+69
It doesn't even really have to be AJAX. You could solve the problem just by setting up an #anchor so that when the screen reloads after voting, it just the user back to where they left off.
>>eli+Eb
that doesn't solve the problem that I (and I assume others) habitually press the back button when I'm done perusing comments in order to get to the main page. At this point when I press the back button it goes to a slightly older version of the comments page- and various other oddities.