"Kiwifarms was taken down by the Twitter mob"
or
"Kiwifarms was just freedom of speech"
Those people either have clearly never visited the site, or are operating in bad faith. I would visit Kiwifarms occasionally to catch up on obscure drama, get updates on Chris Chan, or just look at the deranged posts from users on the site.
Kiwifarms had always been instrumental in coordinating attacks on people, not just "mean words" but swatting, doxxing, getting people fired, mass well-poisonings (aka "cancel culture"). It was not only a cesspool, but a source of what would probably be called "active measures" in the 20th century.
As for Joshua Moon, he has never been the voice of reason beyond damage control for the site. When eyes are on the site you best believe he's trying his best to control optics. But even then, he's such a deranged psycho that his letter to the press on why Keffal's was "targeting him" used the "Jewish parentheses" and multiple slurs. Taking his arguments in good faith isn't playing centrist, it's extending an olive branch to a holocaust-denying antisemite, whose hobby is running a site that bullies trans people into suicide.
I'm sure it's because Hacker News has a contrarian streak, but people are so willing to buy into this idea that free speech is being persecuted online that they are willing to defend KiwiFarms. If you haven't visited the site before, I implore you to listen to the people who have for years. What KF engaged in was not protected speech.