I feel like a business would have to be really dumb to rule out hiring NY'ers because of this. NY has a very educated and very large population.

Edit: I did the math. Colorado and NY have a combined college degree population of 9.9 million, or 8.9% of US degree holders.

I think one long term effect of this would be driving up wages outside of states that require posted salaries, at least for some positions in some industries. There probably aren't enough businesses signing on to this idea to make much of a dent though. As a business, you're effectively reducing your own labor pool. Either way it feels like the corporate equivalent of cutting off your nose to spite your face.

Probably the same idiots whining that "no one wants to work anymore" (cue worlds tiniest violin).

They'll be out of states if we keep going then they'll naturally just cease to exist. Or, more likely, adapt to actual regulations.