N of one, but:
- Paid closed source = Advertisement, ban.
- FOSS without free self hosting = Advertisement, ban.
- FOSS with self-hosting but some self-hosted features are paid = Still an advertisement, but MAYBE acceptable if we are being lenient. I don't like it, personally.
- FOSS with free self-hosting and paid hosted services = Good for them, play on.
Edit: @Shadow@lemmy.ca had a comment about Tailscale, it's a prime example of the last bullet.