I will admit that I didn’t take the time to read through those articles, but I doubt any of them mention the positive effects of using profanity to deride others…
Because there has never been any positive effect from deriding others?
From social change (e.g. "look at these backwards bigots"), to running a tight crew ("wtf Kowalski, you stupid! You nearly got us all killed"), deriding others can just as well have positive effects.
Then there's the fact that some things naturally and inevitable deserve derision.
Not all ideas are derision proof.
Let's have Theranos or Fyre festival or non-vaccination as an example that we all agree on.
A healthy society should include a healthy dose of derision for derision worthy ideas.
(And if you think my argument above is stupid and deserves derision, then you've just made my point!)
