In the event it's somehow not against the law to ride against traffic in any given municipality, it's incredibly stupid. We as cyclists have a hard enough time getting drivers to acknowledge us and NOT kill us when we are riding the same direction and they should see us, let's not make it worse by riding at them from a direction that they shouldn't realistically be anticipating anything coming from. Never mind that all the traffic signs that we are meant to obey won't be facing us if we ride on the wrong side of the road, or the risks that we're subjecting other direction-conscious cyclists to when we would have to pass them.