1. You click the "yes add a poll" box on the bottom part of the page when creating a thread.
2. Add in the number of options you wish people can choose from to vote on (this can be changed in the next step)
3. Click create thread, and it'll take you to a new page with poll details, where you can type in which options says what and adjust the number of options.
4. Create thread.
No need for creds.