My opinion is if you want to make a poll on Reddit, just make a normal post with a poll as anyone else would. People usually like polls, so you would likely get a lot of responses. Not sure why it would be stickied when other people's polls aren't, though.
Again, it would be for visibility purposes, and all of the polls would be for the larger purpose of gauging very specific feedback on a wide range of topics that a single poll cannot convey. The sticking would only happen if a specific poll question falls off the front page before the allotted 3 days for the poll are up, so that the visibility would at least remain as consistent as possible. Or perhaps I should just shorten the allotted time to 2 days.
