I think it's also only going to get worse when the amount of bad content and blog spam is 1000 times the ratio it is today due to really human-like AI writing. I am sure Google will find ways to detect this, but it will be a cat and mouse game for decades because at some point we won't be able to tell apart bad, lazy human writing from AI writing.
At some point the internet has to go to a circle of trust model with real identities tied to online content of any sort. I see no other way to curb this pending disaster than being able to block bad actors and bad actors having very limited means to publish under an alias.