Why not let users bring their own keys? I wouldn't mind paying $2-3 to use Apollo. Apollo has to also pay 30% of their revenue to Apple so their subscription fee will be way higher and not feasible for most users.

This also seems like the most reasonable solution to me, the guy who is generally supportive of Reddit trying to make money.

But having worked on platforms like this, this solution opens up yet another support vector. A cost that works for the most potential buyers may not be high enough to actually pay for support requests.

That's a good point. Apollo does charge a one-time fee to create posts. They also have a subreddit so the community offers support. I think Apollo should pivot into a feed app that connects to Reddit, Twitter, RSS feeds, Substack, etc. and lets users bring their own keys.