Why would anyone pay money for random nonsense chat logs? Seems useless for the regular reasons data is sold and outright bad as training material for AI.
It's exactly the right data if you want to make a realistic-looking chatbot, e.g. in order to astroturf.
It also likely contains information about you and your friends like holiday plans, medical conditions etc that can be used to more effectively avertise towards you.
But most of all, you are a captive audience that Discord can sell in the future.
