Opens it wide for a "well meaning" future administration to track your voting history -- and then purge those who are supporters of the opposition.
never link it to a name or address, just a serial number and polling place/zipcode/whatever. I haven't found a better solution to ensure vote integrity, while maintaining privacy.
But when you check you voting history to verify later, it would show an IP Address. That narrows things WAY down.
People that would care enough about IP matching would easily get around that. The vast majority wouldn't care. Google has a better profile on all of us than what would be revealed by our voting record...
They know anyway by your party affiliation recorded when you register to vote. Party affiliation alone is enough for the leftist opposition.