Posthog is open source, I use the open-source version of that, but I'm pretty sure I'm the product there one way or another. Same with Supabase.

For me, if it's a closed loop between passionate devs and donations, with no other money in the system, then I agree with you. And it doesn't have to be open source, just that closed loop.

But here in nostr is not such as closed loop. There is a lot of money here, clearly. All us free users, we're all the product of something, just not clear what yet.