You'll need to look for sites that are aimed at adults- the kind that want age verification. If you search for one in whatever genre you like you should be able to find some. Anywhere that is going for a general public market is going to have at least the same posting guides as dA, many are stricter.
I don't think Deviant have that many rules about posting !! When you can upload nude girls and guys , I don't think you need anything else unless you want to upload some dead people or abusive pictures !!
And here's what you've got to do: 1.Pixiv ID - Here you must write your name like a url. For example: joe123.pixiv.net So all you got to do is write your ID like the same way you write your dA ID is PhantomReyne and then add ".pixiv.net".
Note: You can write any name for your ID you want as long as you don't forget to add ".pixiv.net" after that
2.Nickname - Here you write your nickname. It can be any nickname you want, it can be the same as your Pixiv ID or any other you want.
And I think you'll be able to to do the rest on your own.
Once you press Sign Up you must check your email and when you see Pixiv you must open it you'll see an underlined link in blue. Press the first link you see in order to verify your account.
And finally you can visit Pixiv.net. If you want to Sign In you must look up in the right side of the Homepage of the site, it's on top of Sign Up and all you got to do is write your Pixiv ID and password and there you go.
It depends what you want to post. But if I assume you mean artwork related as opposed to just social media like Facebook or Tumbler and if I also assume you don't mean uploading other peoples work and claiming it as your own and if I assume you mean porn.
Then it sounds like you need a Hentai Foundry account.
I wouldn't say forums have much in common with DA at all. But yeah, if you want low moderation there are quite a few sites like those. A mutual agreement is not censorship per se though. Especially a user agreement for a service.
I saw a special on *wince* "extreme bathrooms" (THERE WAS NOTHING ELSE ON TV!!! DAMMIT!) and they showed this invention in some place in europe... forget where exactly.... anyways the invention was a urinal that popped out of the ground. no doors, nothing. so a little five year old girl could stop and stare and go "look mommy! what's that man holding in his hands? It's so fleshy and stunted!"