So, how do I mark my profile NSFW....here's a snippit from the rules.. https://ello.co/wtf/post/rules
"Don’t post sexually explicit content without flagging your profile Not Suitable for Work (NSFW).
NSFW flagging in is development. This policy will go into effect as
soon flagging is completed. We respect the diverse views of the Ello
community. Not everyone wants to see sexually explicit content. If you
regularly post this sort of content, please respect those in our
community who do not wish to see it by flagging your profile NSFW. Doing
so will screen your Profile’s content from Ello users who would prefer
not to see it."