This is unrelated to the original assertion: "If they charged users what it actually costs to run their service, almost nobody would use it." 5 million paying

This is unrelated to the original assertion: "If they charged users what it actually costs to run their service, almost nobody would use it." 5 million paying customers on 800 million overall active users is an absolutely abysmal conversion rate. And that's counting the bulk deals with extreme discounts (like 2.50 USD/month/seat) which can only be profitable if a significant number of those seats never use ChatGPT at all.