definitely yes. If yes, you can always change your mind. :)
That depends entirely upon what the question is...
No, it really doesn't.
You can decide YES about anything...then change your mind. Observe.
Shall I kill myself? YES
Err...actually, sod that, I'll drink vodka instead.
Will the world end tonight at 11.18pm? YES
(11.19pm) Okay. maybe not.
yeah, but the question might either be "should i do something" or "should i avoid doing something"? or it might not.
there might be an actual i have in question in mind, there might not.
Okay, fair enough, your question might be "did I have a wee 3 hours ago?", in which case, you can't change your mind. However, it would make you very weird. so lets gloss over that. :)
how can you make a vote on a poll with no subject to vote on!
if you add a undecided or at least an option that its neither yes or no then i might vote!
Either yes or no. Undecided would be no use to me - you may as well not vote. ;)
no use to you, are you running an experiment?
but surely an undecided or summit would be of use, as it stands you only see the people that vote yes or no, with an undecided you would also see the poeple that didn;t vote yes or no!
So will we get to know what we have voted yes to? :o)