Since I've switched mostly to a browser that doesn't support Javascript, I've stopped voting on HN.
Not voting is also a good way to avoid being tracked and pigeonholed.
It's true that if everybody did that, this site would be a lot less useful. However, I'm not convinced that some sort of anonymous yet secure and transparent voting system can't be implemented.
But, while voting requires enabling technolgy that will help others track and pigeonhole me, as well as make my system less secure, I'm going to avoid it.
Fortunately, HN is still readable without Javascript (even though it annoyingly doesn't indent threaded comments properly without it -- something that Slashdot manages to do just fine without requiring JS).