Different people have different standards for this type of thing. Be a good cunt and accept that there are over 8 billion people on the world, some of whom have very different norms than you have. Don't declare your own standards as somehow authoritative.
This applies twentyfold when the topic of the scientific paper is swearing. Like mate, seriously?
Anyway, I tried. Good luck with your life.
I think, if the subject matters call for it, which clearly this does as they're literally looking at swearing, then it can be fine to swear. It can be more concise and more accurate.
The reaction to that welcome is highly location dependent.
Silliness has an important and necessary place in research.
“F**k” could be any number of things. (Shrugging guy emoji)
As a methodically scientific academically academic scientist myself I struggle to arrive at a firm and defensible position on what it could be.