This is a major part of why I don't think early voting or any sort of remote voting other than the traditional absentee ballot should be allowed. And traditionally, absentee ballots were only authorized for cause -- like of you were going to be out of the state on election day so there was no way you could get to the polling place, or if you were physically incapacitated in a way the would make it difficult or impossible for you to travel to the polling place.
All these new provisions for early voting and mail-in ballots are opening not just the door, but a virtual floodgate for fraud. And it makes a mockery out the term "election day." Election day seems to have turned into "election month."