I should point out that it's none of Kiwifarms' business with what they do. After all they are the agressors, which means they can't handle it.
When you act in the public space, your behavior can become a matter of the public interest. We can have an extended philosophical debate about what people are, we can talk about shame being used as a tool to mitigate socially dysfunctional/anti-social behaviors to keep people somewhere in a kind of nebulous mainstream spectrum of what is considered socially acceptable if you want. As far as I'm concerned, people have always and will always pick out weirdos to laugh at. Freak shows have existed since ancient times, and this is not something that has gone away. You can argue that it should, but then I would argue back "what is it about human nature that attracts people to the bizarre. Why do people laugh at freaks, can this be changed?" And I don't believe it can.
When people decide to act in ways which are universally considered to be anti-social, or way beyond the mainstream, and they engage in this behavior publicly they volunteer themselves as objects of public speculation.
That's a fact.
You can dislike this fact, but it doesn't change the nature of the fact. If people are weird, anti-social, or way outside the mainstream and they want to engage in those behaviors then they better not care about the opinions of others if they choose to express those behaviors in public.
So I can only say that your view that "it's none of anyone's business" is naive and unrealistic.