Reddit CEO Steve Huffman has hinted that in future some subreddits could be paywalled, as the company seeks to devise...
“I think the existing, altruistic, free version of Reddit will continue to exist and grow and thrive just the way it has,” Huffman said. “But now we will unlock the door for new use cases, new types of subreddits that can be built that may have exclusive content or private areas, things of that nature.”
I imagine they'd be eyeing things like having a partnership with patreon so patrons get access to an exclusive subreddit at a certain tier (with reddit getting some cut). Not saying patreon specifically would go for that but I imagine that type of monetization is what they'd be mostly considering. Or maybe a better example would be something in the realm of substack. Paying directly for access is hard to get people to go for without a third party with financial incentive to drive content.
There are private/paywalled Discord servers and forums out there, too, so this could replace some of those. I think the Reddit format is better than a lot of alternatives, so I don't actually hate this idea.