This excuse has been used to protect Google and Facebook for decades, but considering disinformation campaigns, civil unrest, and outright genocide has been the cost... I think the price of using obscurity to prevent SEO tactics is way too high.
The root cause isn't algorithms, it's a lack of accountability (both of companies and of users). The problem with 8chan wasn't some inadvertently harmful AI, it's that the site and its users damaged the world for several years without facing consequences.
