How about, rather than (or perhaps in addition to) having the ability to post polls in the Forums. Create a separate global Polls area, where people (or perhaps just employees) can post polls that won't be buried by other threads. If everyone, not just employees, can post these polls, there should be logic to check for an existing poll with a similar question/options. This way we won't see the same 4 polls over and over again in the forums.