I think this hits almost bullseye for the reasons of this change, but I'd add the White House along with the brands who'd rather have their dislikes hidden.
However, shadowbanning is for cowards. Would you also ban the people who only cast likes without any dislikes? Both groups have the same signal-to-noise ratio and can be equally harmful.
I kinda doubt this, to be honest. In real life, I discount the opinions of people who only ever have negative things to say. Seems as though serial dislikers might deserve the same treatment.
Emotionally, I really get it. We feel positive towards positive thoughts and vice versa for negative ones. But in the context of information, a "recommender" that recommends everything is equivalent to one that recommends nothing: both are worthless (ie can't provide any new information)
However, shadowbanning is for cowards. Would you also ban the people who only cast likes without any dislikes? Both groups have the same signal-to-noise ratio and can be equally harmful.