I suspect it likely is the subject matter. An article about something fairly non controversial (like say, a popular game or film announcement) is by definition

I suspect it likely is the subject matter. An article about something fairly non controversial (like say, a popular game or film announcement) is by definition going to get less personal attacks and troll comments than something about a heated political/religious matter or anything involving 'social justice' related issues (from any side). If more of the female writers write the latter type of article rather than the form, this could lead to the stats shown.