For a few months now I've been toying with the idea of a "mutual data fund." A social network that collects & anonymizes user data, pools the data on behalf of all users (similar to how a mutual fund pools investor cash), and the data is "invested" (sold to advertisers) by a management company (like an investment adviser) with the data always under the ownership and control of an independent Board of Trustees (same as a mutual fund). Just like a mutual fund, the "returns" from the data would be used to pay the investment adviser for operating costs + some flat % and the rest of the returns would be allocated to users on a pro-rata basis. So the people who use the platform more or share higher-quality content get more "shares" (the investment kind, not the social media kind) of the ad revenue than those who aren't on the site often or share fake news or just annoy the crap out of everyone else.

Most users probably wouldn't make a whole lot of money on the platform but they'd have privacy and ownership of their data and they might end up with $5 or $10 after a year on the platform.