This how they figured this out: (via Quartz)
An analysis of millions of chats with customer-service professionals provides some insight into the places where people’s frustrations are laced with the most invective. LivePerson provides live chat and messaging technology for companies to run their customer service operations, and says it provides services to 18,000 businesses including Adobe, HSBC, Citibank, and The Home Depot. It used sentiment analysis to parse transcripts of 35 million chats that took place in May 2017, counting up words the company categorized as either “curse” or “polite.”