It's not an everyday platform. It was created to compete with/replace the terrible systems FBI and others have spent billions on without results. It's used by large corporations, nonprofits and domestic and foreign governments to make sense of intelligence. It's like Google for intelligence... can be used to find human traffickers, LAPD infiltrating political groups or other govts assassinating journalists.
https://www.buzzfeed.com/nitashatiku/protest-palantir-muslim...
https://www.bloomberg.com/news/articles/2011-11-22/palantir-...