No NSFW or Adult content In order to be inclusive to as many people as possible, our public community is not for posting adult content, you will have to find somewhere else to promote it.
I am not sure about that. This is written in the rules above the announcements.
If the intent was to merely telling people the obvious about not posting nsfw "content", as in, videos/images in the threads, they should have said so. Instead they wrote, you have to find somewhere else. Not, you have to post it in a sfw way and tell people clearly that it is a nsfw game.
But I admit that this is not worded very precise. They should exchange content with games/projects. Or add what you wrote. Hmm. Maybe they used content, because this also for assets and other projects. But "posting adult content" is quite clearly putting nsfw stuff in the posting, and not equivalent to promoting adult content.