Earlier quoted context omitted.
Twitter isn't a professional setting like a conference session, and anyone joining in a game of CAH is deliberately opting-in to a situation where offensively funny combinations are the entire point of the game.
I know people disagree with me frequently on this, but most conferences aren't professional settings either. You register and you go, that's the criteria. And people do a lot of "unprofessional" things at and around them.
https://us.pycon.org/2013/about/code-of-conduct/
> All communication should be appropriate for a professional audience including people of many different backgrounds. Sexual language and imagery is not appropriate for any conference venue, including talks.
> Be kind to others. Do not insult or put down other attendees. Behave professionally. Remember that harassment and sexist, racist, or exclusionary jokes are not appropriate for PyCon.