Small correction, this doesn't happen on Kiwi Farms. Kiwi Farms is focused on discussing much more mundane, public drama. Just interactions between people, mostly on public social media like Twitter, Youtube and others. Things like hacking, private financial information, DDoSing, swatting, are all heavily policed on Kiwi Farms. Additionally, directly interacting with the subject of a thread on Kiwi Farms is also bannable.
Their ethos is watching monkeys in the zoo, not going out and poking them themselves.
There's actual shady forums out there that do those illegal things, generally hosted in foreign countries or behind Tor.
But before you do, you should make sure that a crime was actually committed, and mere criticism, or sharing information you posted yourself, or sharing information which can be found via the 21st-century equivalent of a phone book, is not criminal in the United States. And that's usually what a "dox" is; very rarely does it involve hacking into government databases or something like that.
"Beliefs and practices" is, again, leaving aside the "who swung first" aspect. Have all the beliefs and practices you want that don't involve harassing others. If your beliefs are homophobic/transphobic/racist/sexist/etc and you choose to then "practice" those beliefs by harassing people you don't like, you swung first and you shouldn't be surprised if society looks down on you for it.
If doxing and criticizing people for their beliefs and practices is not okay for the right to do, then it's not okay for the left to do either.