Blackhat SEO methods from 5+ years ago may not work anymore, but it's a cat/mouse game, so there are certainly modern methods that work like a charm until Google catches up again.

It's like adblocking. 5+ years ago it was generally enough to target HTML elements with an ID of "advertising-wrapper" or something obvious like that. But ad networks and the sites that implement them got smart and started using generic or randomized IDs so that would work. Then the new method was blocking known advertising domains. Now some of them are starting to serve ads from the same domain you access the site through.