@HugoZink Both of those links refer to long-form book writing style, and is analysed by a computer. I am a woman working as an engineer, I write professional email communications all day for work, and have for many years, and I can say in my experience it is very difficult for a person to infer gender from email communications in a professional context. I have worked with men and women, and I've been mistaken for a man several times.

There just isn't enough text to go on, and the subject matter is limited, and people aren't computers.