"Warm Worlds and Otherwise" is a significant text.
I'll grant this qualifier for purposes of discussion. In that case:
- if someone writes using adversarial methods, can that person's gender still be detected? How much text is required?
- Here are male authors who wrote romances using a female pseudonym - https://www.goodreads.com/list/show/104973.Male_Authors_Who_... . Can we presume they used other adversarial methods? I do.
- How many people are trained to write using an adversarial style?
(Quoting the top Google hit for "write like a man" at https://www.timsquirrell.com/blog/2017/3/29/write-like-a-man... : """Teachers often make up for this by telling their female students, either explicitly or implicitly, to "write like a man". This means that they should write confidently, "objectively", not hedging their arguments, coming down boldly on one side of an issue, etc.""")
- Are all gender mis-identifications due to the authors using deliberate adversarial techniques?
The imitation game is adversarial (both players try to convince the interrogator that they are the woman, or the human). GP was talking about non-adversarial settings.