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In fact Google AI algorithm understands user intent so thoroughly ...
Understands? Right.
They know user habits by spying on them (people allow them), yes, and they know what a user might click on average when searching for a particular keyword. There's no AI per se behind this. It can't be. That would be exact-prediction AI, which can't exist. Or if they did invented it then they should rather use it to foresee lottery results perhaps?
Unless you're saying that statistics are now AI.
What I'm getting at here is that such "AI" can't be mature enough to be put into production. Or if it is, it cannot have such weight on rankings that all of a sudden now sites that sat on page1 for a year are now deranked to page3+ or that some rankings are devaluated to page 100+.
Google, a high tech company, are still pioneers and they use our data (google without data is not google that we know today) to advance, but at the end of the day, they're still learning and they do this on peoples and companies expenses. One day they rank you high, next day they remove you from converting positions on SERPs without any explanations. Just to try out different algorithms. Without user's data / websites, google search engine would not exist. But they're so integrated in everyone's life nowadays that they know they have the upper hand and they can do whatever they want. And all they give back as feedback is "create good content / yes we tweaked the algo but we can't tell what". Screw that. I understand that google will not reveal its algorithm, they're not stupid, otherwise that would allow anyone to reverse engineer it. But they could point people in right direction when they do a major update, instead of throwing out misleading info, just to add to confusion.
I do not have anything against google, and I think they're a progressive company. But they should give back something useful when they do update the algo. After all, the biggest scrapper and duplicate content website is indeed google.com.