The issue here is that you are having to add the comment at the end of the comments. I guess the reasoning behind this is so that you see the latest context in terms of comments posted. This is probably the reason for reverse posting comments (although personally I find this makes reading the flow of comments a little difficult).
This issue is not just a problem on single page comments pages. I've noticed this on Quora as well which is paginated. Answers have to be made right at the bottom sometimes after pressing more several times. In this case answers are ordered in terms of numbers of votes. However on questions with lots of answers it can be frustrating for the user who wants to post an answer and has to travel through many pages.
I guess if comments are paginated but the latest page shown first (with comments in the correct order) then many of these problems go away. The latest context is shown, in a readable way and you can put the "post comment" area directly below the article ... which is the ideal place for it.
So that would be my argument for pagination on standard comments.
In Quora's case I don't really understand why they need to make you add comments at the bottom as the best answers are at the top and there is no chronological sequence ... why not make the comments section at the top.?