This would almost certainly not work due to how easily most sites can be hacked by experienced and motivated hackers. That website would essentially just be a b

This would almost certainly not work due to how easily most sites can be hacked by experienced and motivated hackers. That website would essentially just be a bounty list for hackers. The better option would be requiring an extra DNS entry meaning the hackers would be trying to hack into a registrar which is probably a fair bit harder on average.