This is exactly the statistic I was wondering about. One of the things that struck me about the original vote was that it was pretty close (~52%-48%). And the f

This is exactly the statistic I was wondering about. One of the things that struck me about the original vote was that it was pretty close (~52%-48%). And the funny thing about close votes is how much power the 51st voter gets for their decision in spite of clear signalling that people don't actually know the answer. Like, the original thing you're asking is probably not very well understood or not very consequential if about half the population is for and against it. You can absolutely make a decision based on this, but you're asking a whole bunch of "armchair experts" their opinions, only to find out that they don't know because they don't have a good concept of the suggestion. So the change in opinions after the fact is actually probably a lot more meaningful than the original vote was.