If you want you can download Perlmonks Navigator and add buttons for voting. The URL to vote ++ on the above post looks like this:

http://www.perlmonks.org/index.pl?sexisgreat=vote!&vote__66960=1&node_
+id=66960&op=vote
[download]

Given that and the fact that in that JavaScript you already have the current node ID, this is doable.

I still prefer the current interface though. I rather like being able to mark several articles and vote on all of them at once...