> This has some interesting possibilities—someone filtering out all nsfw posts would also not see anything tagged nsfw.gore, but someone else could choose to filter only nsfw.gore and still see posts with other tags like nsfw.nudity or plain nsfw.

That section from "Mechanics" [0] makes it sound like there will be no adult content ban. There is more that makes me think that, but this makes it pretty clear.

[0]: https://docs.tildes.net/mechanics