Others alternatives are too time consuming. There is no clear motive for anyone to rig this poll. If there is a motive to rig the poll to benefit someone, we will find a different way of doing it.
Anyone with an agenda in regards to Nxt could well have motive and as I mentioned:
https://bt.irlbtc.com/view/423995.0;topicseen means that you can create as many accounts to vote as you like right now.
So what does the poll actually achieve when you have absolutely no way to know whether it is in anyway representative of Nxt stakeholders?
(i.e. why even bother with it - wouldn't it be better to instead just have people cast their vote as a post that includes their account name and reject any new accounts?)