More to the point, ignore shit content. Don't comment or vote or read the page forever. Engagement is what they want, and hate engagement is just as good as any.
I like the spirit of this. But we also need to remember that "The Algorithm" isn't a single thing. Each service has its own weights and calculations. Each algorithm is designed to do something specific.
Each service builds their algorithm to serve the ends of the ones who control that service. This generally yields an undemocratic system, by design.