It's already bad, but the amount of garbage that is going to flood YouTube now is going to make it unusable.
I remember seeing low-quality but viral content on YouTube, so I kept telling it "Don't Recommend This" for quite a while (month-ish). Now it's better, but the recommendation algorithm needs a lot of samples labeled negative.
So not feeding the algorithm seems to work as well.
And for the average person, 1000x worse.