I'll be the victim.
   This idiot Karl is messing the internet all up with his derogatory
   speech.  Let's make the world a better place by filtering everything he
   says so that it's nice!
   Luckily I am Karl, so I will be able to figure out what the heck is
   going on in my life, by being the person causing the problem.  I really
   do have a problem with posting crazy things to mailing lists on the
   internet, so it would be pretty nice if some completely transparent
   system that I am in complete control of, would mutate anything rude or
   harmful I might say to be nice, so that I don't make enemies during
   psychotic breaks.
   Deploying a mitm attack on the stupid idiot typing this email is a
   challenge.  There are a few difficult parts:
   - writing code to mutate packets live without disrupting network
   sessions
   - figuring out and implementing a workaround to SSL if the guy uses it
   - training a language model to mutate his speech in the desired manner
   This idea seems _so incredibly cool_ to me, that I have actually
   already started step #3 in a tiny, microscopic, nonexistent manner.
   [1]https://vast.ai/ is a service that provides brief access to high-end
   machines for training transformer models to make deepfakes and such.

References

   1. https://vast.ai/