They did. They claimed that our terms of service to not allow people to upload potentially criminal content makes the app not Free Software :(
Discussion
For reference: https://github.com/vitorpamplona/amethyst/issues/378
Okay... now that I read it, they kinda of have a point. A rock and a hard place. Without the TOS, Google might give you a hard time. At the same time that TOS formulation is not really in the spirit of FOSS 🤔 Still my gut feeling is they don't like Nostr. Bitcoin "Nazis" and all. I remember FDroids draconian blockade on Gab mastodon apps.
Potentially criminal? I suppose they are still hosting Mastodon? What douchebags.
It's complicated. think about what happens when somebody uploads sex trafficking content via the app. If the app, when installed via a marketplace like F-Droid, doesn't actively forbid such behavior, whoever ships the app might be liable for "helping" them in some jurisdictions. So, right now, Amethyst includes statements to protect us against it and F-Droid claims those statements make the app not FOSS (I disagree).
I see your point.
The app developer can be liable if someone uses it to transmit illicit content? I’ve never heard of the developer of a web browser or SFTP client being sued for that.