the problem solves itself (unless you are very desperate)
Have you seen dating sites? When the market is such that one side can clearly pick whoever they want, not everyone has the luxury (good looks for dating / relevant experience for jobs) to not play ball
Not to mention the improved team quality now that you can easily and effectively verify that the person can do the job in real-world conditions
But, to be fair, there does probably need to be some pre-selection. Anyone could show up for a free day’s wage. Might still be worth it though, who knows