Since you have a lot of women, I will suggest that you explicitly instruct them to be careful about talking about other people in their lives in identifiable terms. Men tend to invest their identity in their work. Women tend to invest their identity in their relationships. Telling anecdotes about "My sister/boss/mother/daughter/son/husband" is potentially putting those people at risk. Encourage them to use vaguer terminology such as 'someone I know'; 'a relative'; 'an acquaintance'; 'a friend of a friend.'

Women are incredibly prone to talking about other people in terms that they don't think is problematic and in terms that they think is anonymous enough for the internet, but really is not ("my sister" instead of "sister's name" -- but it is possible to identify your sister). This is a habit they need to break if they value the welfare of these other people.

Edit: Since this is getting down votes, I will add that if you think they won't listen to a man saying this, I will be happy to blog about it and you can give them the link. Perhaps it will be more palatable coming from a woman.