The vote button scrolling feature doesn't seem to be enabled for my own questions and answers.
While this makes sense given the motivation of the feature being to encourage voting and the fact that I can't vote for my own posts, I find the inconsistency a bit disconcerting when scrolling through a page that happens to contain one of my answers, especially when I'm not specifically looking for/expecting one of my answers.
Personally, I would rather accidentally try to vote for a post that I forgot was my own, every once in a while, than have the voting buttons behave in a way that's logically consistent but visually inconsistent.
At least if I try to vote for my own post, there's immediate feedback that explains why my expectation (that I'll be able to vote) is wrong. (I'll wager One (1) Good Beer that the lack of similar feedback regarding the expectation that "vote buttons scroll" explains this recent bug report).