taro2190 Nah, it's pretty common. Personally, it feels weird to me, so I stopped doing it after trying it out the first time. Just like StenDuring, it's more fun to vote for others. As veinglory said, my few stones don't do much in getting up there in the rankings. And lastly as veronicapurcell said, I enjoy getting more in other readership statistics, that includes powerstones from others not myself. XD
But, I did start noticing possibly in the last two contests, that self votes might count somewhat toward the PS contest rankings. And even if it doesn't (never got an official answer for this), self votes might help boost rankings considering you're getting a decent amount from others already.