It was included as protection and a pathway to action if required, in case of any potential derogatory racist/ gender remarks. We have a female contingent of members and are a world wide community.
These Rules were laid down 6 years ago. Items/pictures that are now not deemed as socially acceptable, differ considerably from what was OK 2013. So in view of the current social situation regarding gender equality, they were a worthwhile pre-consideration when promulgated and I think still apply today. You will find that many other forums have a similar clause.
Thank you for taking the time to read the posting.