>>22655838>For what purpose?Whether GameFreak does it or not I have no real knowledge, but the general idea is usually to get metrics on everything.
What Pokemon people use against what, what moves they teach them, how long they take to do something, what they spend most of their time doing, what they avoid, what they seek out, what options they turn off and on, etc.
Gives them an idea about how people are playing their games and what they may or may not understand or like about them.