There isn't going to be an alternative. Nobody can shoulder the burden of several tens of millions of Redditors except for another company, who'll be compelled

There isn't going to be an alternative. Nobody can shoulder the burden of several tens of millions of Redditors except for another company, who'll be compelled to act in a similar way to preserve the cash cows. What already has been happening is that communities in the crosshairs of administration have set up their own sites that very few people know of, and the rest continue to be farmed for ad revenue.