Maximum Poll Options
This is the maximum number of options a user can select for the poll. Setting this option to 0 to allow any number of options.
Poll Option Length
Maximum characters that a poll option can be.
Update Thread Last Post on Poll Vote (Yes/No)
If you set this option to 'Yes' the thread's last post time will be updated when a vote is placed, thereby returning it to the top of its parent forum listing.
Required Thread Rating Votes to Show Rating
This option can cause confusion. The last post time of a thread will be changed with no visible post.
Thread ratings are relatively inaccurate with just a few votes. This setting can be used to delay the results until enough votes have been cast to give a more accurate rating. This option specifies the number of thread rating votes that must be cast of a particular thread before the current rating is displayed on forumdisplay.php and showthread.php.
Allow Thread Rating Vote Changes (Yes/No)
This allows users to change their original rating of a thread.