To create a poll on this forum, use a
[poll] tag, then create a list of items in the post.
[poll] - Option A - Option B - Option C [/poll]
The author has a “Close Poll” button which locks voting.
There are a ton more nifty poll features available. You can read all about them there.
EDIT: This feature was totally revamped. When that happened, all existing polls broke. LMK if anything of value was lost.