Because kiwi farms doesn’t do so much as dox a person. They find publicly available posts that people have made and point out how dumb/evil they are. Even if the individual has done a ton to bury them. Or if they were done under the name their parents named them and they do not have much of an internet history under that name. A lot of those involved in leading the charge to get cloud flare to drop KF all had pages on them and all those pages just how much those individuals lie and how evil they are. These are people with very little real knowledge on any given subject but are somehow really well connected and frequently in the middle of controversy.