Ban advertising.
No, seriously, think about it. Imagine a word where narrow, strictly defined thing called “advertisement” is illegal. I mean, obviously, we’re in magic fairy wonderland here, but y’know… I live in a state where billboards are illegal. Nothing’s truly impossible… just ‘unthinkable’ mostly. Without ads, the incentive to make the platform addictive evaporates, suddenly companies are competing just to, y’know, make a better platform.
busted!