While true, the this time of the year part of the poster makes me think it’s for people putting up Christmas lights who ran the string backwards and don’t want to switch it around. This is also more dangerous because it ensures that a live male plug is lying around far from the suicide cable itself.
I mean they’re using an effectively off the shelf reactor which if outputted as promised would fatally irradiate anyone in the area, so i’m not sure the’re really set up to do much beyond separation of fools and money.