Nothing on this world is free.
You pay with your information, with exposing the contents of everything on your computer, of running processes, hard disk contents as well as the obvious private chat not being private.
It goes as far as what you speak being analyzed and sold off to advertising companies, yes the actual words. Everything you do is being profiled.
I know for some people it doesn’t matter, especially young people are rather ignorant about the consequences of being permanently monitored but it’s not exclusive to young people. I’m writing young people because when you’re young you feel invincible and confident for the most part. As you age you learn that you’re not and how the world really works. Information is power and people will pay money for power.
Discord is even more dangerous and invasive than Facebook. It’s in your OS, on your phone and it wants your information. The moment you log into discord with their app they know what hardware you use, what processes are running (can’t be turned off) and it will scan your drives in the background.
People were worried about Google/Alphabet or Apple spying on them, Discord takes this to a whole new level.
The old “I have nothing to hide” argument. Ok imagine walking on the street and some random guy says “Show me the contents of your wallet and bags and pockets”. What would you say? “I have nothing to hide”? Doubtful. You’d tell them “No, go away and leave me alone” or “You have no right”.
But that is the same as running Discord. You’re exposing your devices to total strangers and giving them access to your wallet contents and your pocket, virtually.
If that’s fine with you, knock yourself out. After all what alternatives are there? None really. Except hosting your own IRC server and your own mumble server (or other VOIP server).
That’s the sad part of the story. Discord fills a hole that needed to be filled, but wants to know everything about what’s on your machines and everything you talk about, written or spoken.