Google could modify their ranking to include these biases:

- affiliate links? Down ranked

- affiliate links to Amazon? Down ranked further

- page contains advertising? Down ranked

- page contains extensive javascript? Down ranked

- page contains links to Social Media? Down ranked

- post _is_ on Social Media? Down ranked further

- page contains duplicate text, found elsewhere? Down ranked

- page contains many links? Down ranked

- page contains grammatical errors or bad sentence structure? Down ranked

But why would they do it, their whole business is built on these things to exist.

Let's look at some things for upranking:

- page uses a static site generator, e.g. jekyll, mkdocs, hugo? Upranked

- page has a balanced ratio of pictures/text and the text actually refers to picture (+ pictures are not stock imagery): Up ranked

- ... (you continue)