Perhaps add explainer:
This poll is based on the preceeding discussion: [link]. Please make yourself familiar with the discussion before voting.
There is a choice between several options.
Upvote those options you would agree with, downvote those you would not agree with.
(comment to abstain? I know this could be abused. ...)
Add an option: "Do not change the current mode of registration."
... and i like to edit: Some information on how the final choice will be made may also be helpful (this could differ by subject): "The option on which the ratio of upvotes [(sum-of-votes -- downvotes) / sum-of-votes] exceeds that of all others by at least 1.5 : 1 will be implemented; should none meet that target no change will be made."