This is no more exploitative than someone trying to make it big on Youtube, Twitch, or Spotify and gaining zero traction. If the content someone creates on these platforms doesn't capture an audience, the hosting platform doesn't generate any revenue and neither does the creator. It's completely free to produce the content (minus your time) and the platform hosts it for free, even though 99% of it never receives any…
[0] Twitch pays out at $100, if anyone didn't know.