In the rules page - https://www.companyofmen.org/help/terms/
It explicitly bans child porn (as endagering the site and reason for immediate expulsion), and has a general phrase:
Due to ongoing legal battles over changes in USC Section 18 laws, explicit photos are not allowed and will be removed. Repeated violations will be cause for suspension. (20 points for 6 months, possible ban)
My understanding is that the following is not permitted in embedded (visilble) images:
1.) Explicit uncovered erections.
2.) Full view of anus.
3.) Visible dick in mouth or dick in butt.
However, we are allowed to cite images of this by reference to a URL ... e.g.
Be it understood that I am not a moderator, but only a member here, and this is my understanding of the rules. I welcome somebody more knowledgeable to comment.