I think they are entertaining and occasionally prompt me to think more about some aspect of SEO.
You can’t base a website on the info from there though.
The search engines do not want you to manipulate their results. They want you to grow at a normal pace, link to a few good places, have a site that is fast to load, easy to navigate and informative for the visitor.
If you are serious about getting somewhere in the long run, that will get you there and keep you there.
All successes achieved by intensive SEO are temporary and make your site(s) act like jojos and you glued to google dances and forced to tweak and tweak and tweak.
If you want good permanent rankings, you have to do what the engines want, not try to trick the engines into thinking you have what they want.
If you want google to like you, read this and mind it: