I'm curious why the author of this piece decided to use the gender neutral pronoun for the women who modelled this odd machine. They wrote:
> The demonstration model would climb into the six-foot-tall machine via ladder, then enter the chamber, with their head sticking out of the top. They'd set the water temperature, then the machine would start spraying them with jets of warm water, like the pre-wash cycle at a car wash.
These models were all women. This was the 1970s, and the photos support the reasonable assumption that this was not a demonstration where male models were used. Using gender neutral pronouns is sensible in many cases — I didn't go as far as to look into the author's biography for example, so I refer to them as they for the nonce — but is doing so when the gender is known (and possibly relevant given the social context of that time) now on the rise, or is this just hypercorrection?