> In technical stuff I've written using feminine pronouns I've had editors change to masculine.
Speaking as someone who has had to write headlines, there can be very strict guidelines we have to adhere to. Masculine is still the default neutral in professional English, in a number of places I've worked at.
Editors don't just change headlines. In technical stuff I've written using feminine pronouns I've had editors change to masculine.
Editors will do anything they think makes a piece more ready for contemporary mass consumption.