Not sure if you've thought about it yet but consider modifying Lemmy's source (shouldn't be too hard of a patch) to show NSFW tagged posts to logged out visitors. (And maybe force-tag all outgoing federated stuff as NSFW? Though that might be difficult for very little gain) It looks like a ghost town from the outside and that's not gonna be helpful if you want any content
Speaking of content, good luck on the moderation. You're gonna need it
In general, it feels like Lemmy could use a better built-in method to discover remote communities, PeerTube as one example has their Sepia Search for remote discovery.
Just to be clear, https://browse.feddit.de/ does exist, but as it's a separate system its usefulness isn't as high.
Why don't communities show up on lemmy? !porn@lemmynsfw.com for example can't be found if I search for the community porn under all. https://lemmy.ml/c/porn@lemmynsfw.comdoesn't exist either, but shouldn't it?
Is it a federation thing? does lemmy.ml not federate with lemmynsfw?
Is it too new to show up still?
Just got this trying to get to your instance:
404: FetchError: invalid json response body at http://lemmy:8536/api/v3/site? reason: Unexpected token 'T', "Timeout oc"... is not valid JSON