Sorry to burst your bubble, but outside of the SV bubble(see Europe) most companies don't see feedback from rejected employees as a high return ("who cares what some people that were not good enough for us think?") since the're never in the firing range of reddit/twitter mobs like the big FAANGs.
So you think that companies don't care what candidates might tell their peers...
But at the same time they're sponsoring meetups and conferences, hosting coding contests, sending people to career fairs, buying huge ads on job platforms to advertise company culture, just to get people to apply?
I can't talk about all of Europe, but here in Linz a lot of companies struggle to get candidates, and they spend a lot of money and effort to get a good reputation as an employer.
