Earlier quoted context omitted.
Not sure why this was downvoted. The reality in SF and many other locations is that supply has been artificially limited and landlords who bought years ago have been making enormous profits. I don't know that I'd describe it as "giving back" but there is a market recalibration that is justifiable and I won't lose too much sleep worrying about landlords in SF who make 30% less than they do now.
Landlord aren’t the ones imposing the artificial limitations though. It’s the same group who created the rules that would punish a landlord for temporarily lowering rent.
It's certainly not the people moving in from outside the area who want to rent for affordable rates.
Landlords are part of the NIMBY problem, but not the only part.