I think there's an even simpler reason than this... some companies that hire remote employees use the same payscale everywhere, and that gives remote workers substantial negotiation leverage. An offer for remote work from one employer that was NYC-based and offered me an NYC-competitive salary in a much cheaper city was enough to talk a different company which leveled by city substantially upwards. Having watched this effect happen, if I were considering moving while working for a company that would relevel salary based on CoL, I would almost certainly be considering offers from other employers - and if I were a manager with an employee who was moving to go remote I would really push back on adjusting their salary, knowing that there are competing employers who won't, and the employee will probably find out one way or another.
I wouldn't call myself a source of advice on remote work necessarily because I kind of fell into remote work by accident pre-COVID, and COVID has really solidified the situation. But it also seems like remote work is going to be on the rise outside of the context of COVID. I live in a city with very little tech industry and so I only rarely here from recruiters, and those that do contact me are usually talking about relo to a different city. Just over the last two months or so I've started hearing from recruiters at nearly the level I did when I lived in San Francisco - and they're mostly not talking relo.
I wouldn't call myself a source of advice on remote work necessarily because I kind of fell into remote work by accident pre-COVID, and COVID has really solidified the situation. But it also seems like remote work is going to be on the rise outside of the context of COVID. I live in a city with very little tech industry and so I only rarely here from recruiters, and those that do contact me are usually talking about relo to a different city. Just over the last two months or so I've started hearing from recruiters at nearly the level I did when I lived in San Francisco - and they're mostly not talking relo.