Board Thread:Support Requests - Getting Technical/@comment-1824669-20151026082805/@comment-1757994-20151026094637

I don't believe there is anything written into the poll extension that allows anyone to disable it. (I haven't read the source, myself.)

If you don't mind disabling every poll on your wiki, you can put  .ajax-poll input[type="submit"] { display: none; } in MediaWiki:Common.css. It hides the Vote! button, so no one can click on it. It's not fool-proof. Any of your users who knows anything about CSS can unhide the button and vote anyway.

You can be slightly more effective with JavaScript, which lately has some hurdles to implement at Wikia, like removing the button from the page (not just hiding it). But again, any of your users who knows how JavaScript is implemented at Wikia can get around it.

If you just want to disable one poll with CSS, but have others on your wiki that you want to keep enabled, you need to know the poll ID, which is stored in a hidden field in the poll form.

Alternatively, you could use JavaScript to hide/remove poll buttons on just a single page by page name, if JavaScript is an option for you. JavaScript would also allow you to remove the button based on time and date. All the above methods are dependent on an admin making a change (either CSS or JavaScript), which only affects users who load the page after the admin makes the change. Even then there are ways a determined user could get around it.