Anyway: Personally, I do not think we can reasonably adhere to any workplace standards, and I don't think we should try. A lot of the content on this site can easily be argued to be NSFW. Putting imagery aside for a moment, many discussion here touch on social and political issues, and we've always embraced an atmosphere of not suppressing people's views, even when they border on extremism. A fair amount of people could probably be fired based on their postings here.
Your mom is when your mom and you arent your mom.