Unless someone on your instance subscribes to a bunch of NSFW communities (typically from lemmynsfw.com), then none of them will federate with your instance and consequently won’t be seen. You can test this by subscribing to one of them and then monitor your All feed afterwards. You should see them pop up at that point.
Unless someone on your instance subscribes to a bunch of NSFW communities (typically from lemmynsfw.com), then none of them will federate with your instance and consequently won’t be seen. You can test this by subscribing to one of them and then monitor your All feed afterwards. You should see them pop up at that point.