Technically free... I need a email in order to contact people with information and updates. No other reliable way to do so. It requires someone to sign up, confirm that they intended to do so, and then every email has a single click unsubscribe button. No one gets the email unless they really want it and I do not filter burner or anon accounts which I am happy to see 90% are using.
I am not following your argument in the slightest that People's actions somehow don't have a impact on their results.
Privacy is more than a hobby. Everyone has different needs and risks which determines what actions are required to mitigate those risks.
You are free to ride your motorcycle without a helmet but it's foolish if you have something to lose.