“You better have fun and love your work so much that you do unpaid overtime, or else!”

Build a product -> make it free or very affordable -> create dependency -> collect user data to improve product resulting in more dependency -> create a near market monopoly if possible -> make it paid only or make the free version a lot worse so users have to pay -> cross fingers that no alternative emerges or just buy it and shut it down if you can.

Always the same pattern.