I wonder if that’s the truth or if it’s this way because there are free alternatives.
If one search engine starts charging a monthly fee, users will just go to another one that pays for itself with ads and data.
But if the prevalent model for search engines is monthly subscription, then people will start paying for it and the value for the user won’t be 0 anymore.
Why would you pay for ice cream from the ice cream stand if you can get it for free next door for the “cost” of them keeping track of how often you come to the stand and what flavors you like, and selling that info to others?