When a poll is set to only show results “on vote”, no one is allowed to see the results before voting, including the poll creator. (I’m ignoring staff because I have no insight into that.) I rarely use this option, but when I do it’s usually to minimize the chance of bias in a poll (though people can always change their vote after seeing the results anyway). In those cases though, I generally don’t want to vote myself as I’m polling others. For that reason, wouldn’t it make sense for me to still be able to see the results without voting since I created the poll?
I agree. It is frustrating not being able to see the poll results because you don’t want to bias the results e.g. if the poll were about how good my site is.