I think it can get confusing reading suggestions for features that have been implemented since the request was made for less obvious features than ajax voting. And they're not particularly relevant anymore. Of course I wouldn't simply delete them so a separate page would be a good compromise.
Without ajax I'm sometimes discouraged from voting at all, because it's difficult to find my location after a refresh, especially on long pages.
Normally I hate "me too" posts, but I feel this feature is important enough that I wouldn't want you to think other people didn't agree. Thanks.
 It pains me to advocate breaking the "show me exactly what I was just seeing" semantics of the back button, but I think in this case the user clearly conceives the back button as "show me the abstract resource I was just seeing."
I understand that this is an error on my part, but that doesn't alter how frustrating it can be.