Changing your vote is NOT multiple voting. Multiple voting is when you can vote more than once or make more than one selection per question.Lol no way. Looks lile you don't understand multiple vote scenarios.
People can change the vote later since Samsung phones need to settle as per many. So gave them that option. 2ndly, people may have two opinions, again based on their own experience over time.
Either way, it simply doesn't hurt the winning poll EOD that too by quite a margin.
How can someone say that he or she is getting worse battery life than the S21U AND better battery life than the S21U AT THE SAME TIME? Or be able to say I'm not sure AND say I'm getting better AT THE SAME TIME?
It is the fact that you allowed voters to make up to TWO selections. That is what multiple voting means.