Goodfeather,
If these polls are really to be taken seriously and you want a proper, broad response from the playing community it would be a far better idea to just notify all players like you do for the competitions etc all the time in the form of a pop up when they log in.
At the moment I stumble on them or don't. If ideas are really taken under consideration then do it properly and inform people theres a vote required that may change the game they play. Its really simple to implement and would direct a lot more to this forum and just maybe engage a lot more on these boards, which can only be a good thing right ?