While front plates are stupid, the Ohio situation is hard to understand. As I understand it, Ohio is not reissuing single plates for the millions of cars registered there, and, in fact will continue to issues two plates to everyone. It is just that you have the option of tossing the front one in a drawer. Something that is mostly of interest to owners of sports cars and other nice cars whose looks are ruined by front plates (even the car companies think so, look at the sponsorship provided Dodge Charger in NCIS:LA, set in the PRC, or the Chevy Camaro in Hawaii 5-0, both 2 plate jurisdictions, but only a front plate).
Which is fine. Except if you are a scoff law, the number of valid plates just doubled. Some jack leg can just take the old front plate off the Chevy and toss it on the Ford and there you go. Now, yes that is illegal and the cops could catch him with a simple check, but a person could probably drive around in that manner for months or even years w/o getting caught.