Easily you can identify from its name what is its attitude:
POLL purK in a more readable way Pollk allows you to start polls or surveys quickly and plurk them on your messages.
You can start a survey in less than a minute, you have only to point your browser to Pollk fill the form and press create poll.
Now you have only to copy the outputs in your plurk message and the poll is ready!
Everyone of your readers is now able to vote directly hitting the links in your message and you can see the polls results thanks to the image linked in the first post.