Signature matching doesn't really change anything, though. At best, that would allow someone to vote on behalf of someone else, but there is still one ballot p

Signature matching doesn't really change anything, though. At best, that would allow someone to vote on behalf of someone else, but there is still one ballot per voter. And pretty quickly I'd expect it to make the news when people complain that their vote got rejected because the state says they voted already. The "ballot harvesting" video was debunked thoroughly in a matter of hours after it was released.