Did you feel that being able to list the free statements of accomplishment has some specific value to you as an employee or a job seeker? (But, presumably, not sufficient value to pay for a certificate?)
Otherwise, it seems a bit of an odd attitude. Do you avoid reading books for educational purposes or watching videos on professional topics because you don't get a certificate for doing so?
I do get that there's value in some certifications. But, except for some limited circumstances (continuing education requirements, as something to show in the absence of a traditional degree) my impression is that Coursera certifications don't have a lot of value. Which has been sort of their problem.