Since I haven’t patched the newly updated version yet, it won’t be automatically marked as NSFW. Please manually mark your posts as NSFW for now until this post disappears.
Update: you can safely ignore NSFW button now. All posts are NSFW flagged by default.
It’s for privacy reasons. Remote servers shouldn’t be able to see Lemmy NSFW users IP addresses. But I will add some exceptions for some providers like imgur, catbox etc.
imgur always deletes nsfw content, it’d be as well to keep it, IMO. imgbox and Catbox are the two I use.