I'm honestly surprised they haven't went under from the amount of investigations into them. We know they SWAT people pretty often. They host revenge porn. They knowingly place nuisance calls into police agencies like with Chris. It's honestly a surprised the government hasn't stepped up.
This is a relativity simple question to answer and the answer is that Kiwi Farms is a honeypot.
Any oldfag worth their salt will know about the 'Party Van' meme which states that you should be careful with how you act on the Internet and what you post online because the feds are always watching and the feds will eventually find you if you post something online that will have their attention directed towards you.
Why is 4chan's /pol/ allowed to exist? Why is Stromfront allowed to exist? Why is the Sharty allowed to exist? Why is Kiwi Farms allowed to exist? Why are leftypol communities allowed to exist? The answer comes down to simply the feds using these communities to play the long game and wait for any retards to self-incriminate themselves on these public online communities (these kinds of communities where you see any kind of political extremism being prevalent will always be honeypots, no exceptions).
Are you some far-right extremist that worships Putin, has a shrine dedicated to Hitler in your bedroom, hates Jews, hates non-whites, hates troons, owns a copy of The Turner Diaries, watches Nick Fuentes on the daily, adopts 19th century American Southern-styled Christianity, wants to abolish liberal democracy, and wants to enact fascism in the Western world? You're most likely on a terrorist watchlist.
Are you some far-left extremist that wants to abolish capitalism, wants to kill rich people, hates heterosexuals, wants to burn down religious houses of worship, wants to enforce mandatory trooning out procedures for children, worships Xi Jinping, has a shrine dedicated to Stalin in your bedroom, wants to abolish liberal democracy, and wants to enact communism or socialism in the Western world? You're most likely on a terrorist watchlist too.
Why does the American government allow the Ku Klu Klan to still exist despite the KKK technically being a domestic terrorist group in the United States? Because the feds know there's plenty of sub-80 IQ retards that will join the KKK where they will incriminate themselves so that the feds can either arrest them or put them on a watchlist because half of the members of the KKK are fed informants.
If you have a crazy friend where they invite you to their "Gun Club" and this "Gun Club" just so happens to be a small insurgent group that wants to overthrow the government then the wise thing to do is politely reject their offer, unless you really want to have the Ruby Ridge experience or the Waco Siege experience first hand.