I think this is where the Fediverse can shine. If a Corp wants to join and host their own stuff, they can, and it will be really clear. Decentralization means that instead of a single broker of the information we can have a range from altruistic to straight up monetization exist side by side. But why some Corp would pay for a subreddit is crazy...I mean, what is the value prop? Companies would have to pay for the subreddit and then moderate it too?