Yes, although is reproducibility even possible in polls? People's opinions change on a whim. In fact people's opinions can change simply because they were asked

Yes, although is reproducibility even possible in polls? People's opinions change on a whim. In fact people's opinions can change simply because they were asked a question so the answer might be different if asked the question again, I guess you could conduct the same poll with multiple sets of people and see how the results compare, but in a way that's what poll aggregators do.