That would be bad to get purged accidentally. However to implement a proper system to match more than names seems to be possible and would require similar information to what was requested in the article. Last four of a social in particular would he pretty discriminating. No system is perfect and moreover I don't believe that voter fraud is a problem worth fixing due to the increased cost and low instance of fraud. However, the arguments of getting an ID being too difficult don't sit well with me. A YouTube video I liked recently was a couple people walking around NYC asking black people what they thought of that argument that forcing a driver's license/ID requirement meant to disenfranchise black voters. The responses were mostly, I have an ID, why would that be hard because I'm black? Maintaining ownership of a birth certificate is just part of being an adult. You use it often. And I know they go missing sometimes, but it's kind of something you just have to fix, regardless of your intent to vote. I vote every time, local, state, federal. Voting is important to me. So I do the things that need to be done to ensure that I can go vote. I don't think an ID is a high bar at all. But again, I don't think having an ID is necessary or a good use of resources due to the fact that voter fraud is largely made up.