That is simply a matter of removing
Code:
$vbulletin->userinfo['userid'] == $threadinfo['postuserid']
from the conditionals in some of the plugins, and the or separator of cource.
I do not have any imediate plans on extending this modification, other than fixing bugs etc. It's a simple construction put together to fit this exact need, and i think it's time vbulletin gave the poll system a little work instead of relying on a modification for such basic behaviour