I think in polls made by the thread creator, There should be a "List" Button like they do with ratings on a post. It basically shows who voted for what or for who Rated what. I'm not going to elaborate on this because you probably know the gist of it :p
90 % of the time, Users don't know who voted in their polls as they don't comment. People like me like to find out who voted in polls, Or did anything.
Yes, I understand, I also would like to know who voted and stuff, but I just don't find it THAT needed, good idea though.
There is an option you can select when creating the poll that lets everyone see who voted or not... >.> http://gyazo.com/7948b1ccc79507be1f01d129eb35e70d
Like poke said, There's a website that's made for this, It's called @votemv.com That's where you can see how much votes you have, Not advertising, because that's a website owned by Crew.