Yes, the thread is contributed to by a simple vote in the poll or by an additional post. Either event will return the thread to the top of the forum.
I am not a particular fan of polls for a number of reasons, some of which have been alluded to in this thread already. However in accordance with the thread originators request it was compiled and attached. It will automatically close 60 days after inception (around the 19th April) unless there is a compelling reason to either curtail it earlier or extend it. At that freeze point it will remain visible to view, but only new posts will then affect the thread ranking.