Those tools are all good ones but you'll need to build out something customized to do what you want to do. Even back in 2012 or so we did not rely on those alone as they do not offer the functionality to create and post content that would have a snowballs chance to have a positive effect on rankings in Google.
I know I look at semantics a lot for the future, where combined subtle adjustments not only to article writing but link building may force Google to conform to outsider AI as their job is to sell AdWords ads, keep the CPC high with quasi-monopoly status, becoming a lot greedier in recent years with interlacing, where even Facebook (
not a search engine, but Google and Facebook are 87% of all Internet advertising) does not label their ads as "sponsor ads" like 2017 and prior. Bad content means people are forced to click on and buy from AdWords people, but then again they have lost market share to their competition (all Googlebot licenses) starting in 2015 with Bing, Yandex, even Yahoo, and a fast-growing Chinese competitor as China does do as much harsh censorship like they did in the old days. Google is in trouble, but if CMS people start using SEO again, while adding a lot more people and sites, although AdWords CPC will go down at first, it will then later go up as the increased surfer/blogger population increases and capitalizes on cheaper AdWords.
I am not sure why there be a precipitous drop-off after 3 tiers, but Google still does intermittent human score corrections, and a robot blast in 2012 with millions of links a month from BHW alone (but there are many other quasi-AI article writer/link builders then) means a sudden three-tier limit, just like when they banned spreadsheets temporarily in 2004 a day after I employed 3-column AdWords word mergers, and replaced source code trending keywords with images a day after I used Python word scraper for Google Trends.
Big G has a large, 24/7 staff with many templates where they can respond very quickly to threats, no matter how legitimate, and you can only learn a lot by challenging them as white papers are just propaganda. You don't give up but keep hammering away with strength-in-numbers innovations and blasts, profitable if a shared affiliate network (eg. Use WheelsOfTrueFortune to place payable affiliate link on sites with form blast of scraped affiliate accounts, and form mail blast username and password that must be changed or warn how admin will lose valuable CPS income. No response after 3 attempts, you keep the money). When true AI is here, they will use instant, dynamic, relative score adjustments like the non-link-endorsement search engine I am designing, and "saturation" means peace and poverty-quashing.
