I am in some discords but never active there anymore. Most of the time I spend there is to talk to my brother and friends to play a game or two. Which never happen anymore since I got a kid.
I am a bit anti slack and discord nowadays, been considering removing Discord for a while now. I would even think Telegram would be better than discord. Mostly because of Discord's privacy: https://archive.is/DG5KV and https://stallman.org/discord.html
What makes me most anti are:
Compiles aggregate data on user demographics, interests, and behavior. Discord reserves the right to share this with current/future partners and third parties, and at NO point communicates how long Discord, its partners, or these mystery third parties store all of this data.
"Personalizes" advertising through tracking and advertising platforms may collect this data for use outside of Discord.
Does not mention how long all of the data above is kept for, and again lazily refers you to the Privacy Policies of anyone they give your data to if you want to know what happens to it.
and that they force people to add phone numbers in some situations.
They might have changed this since that Reddit was written. But it won't change the attitude they have towards privacy.