https://www.makeuseof.com/reasons-to-not-use-discord/#:~:text=1 Discord's Free Version Has Upload Limits. For,your account for any reason they see fit.
https://stallman.org/discord.html
https://cadence.moe/blog/2020-06-06-why-you-shouldnt-trust-discord
also found this from 2019
Long story. It’s the NSA’s wet dream.
Discord is filled with tracking systems which can’t be disabled. They claim they need to have these in order for some system involving push to talk to switch off if Discord detects you playing a game.
That being said, Discord can monitor every application open on your computer. This is how they show what games people are playing. It has a much more nefarious side however as this data is stored by the company, who will hold that alongside everything else you give them. Currently they’re backed by investors, but when that dries up, expect a Facebook level data auction from them. (Remember Cambridge Analytica?)
The owner of Discord is Jason Citron. He has been involved with privacy breaches in the past with his previous venture, OpenFeint. OpenFeint - Wikipedia. This involved the same pattern. Investments ended, the company switched to auctioning off the information of their users. Gamers Say OpenFeint Sold Them Out. OpenFeint was involved in lawsuits involving the Federal Trade Commission (FTC) in 2012.
If you use Discord on your phone, it may randomly lock you out until you give them your phone number. They claim this is for security and that you did something to provoke its systems, but this is unknown. The Discord subreddit is full of people who believe they have unjustly been targeted. Using a VPN will trigger this, so anonymity on Discord is one big nono! They want to store your data for when the investments slow down.
Discord is like Facebook in a lot of ways. In a way, it’s Facebook in its youth. Young Facebook got lots of investments, but as it grew and became older, the investments slowed down and Facebook had to find its own footing to increase its revenue. They became a data collection company. That’s their main purpose. Social media is just the avenue they use to collect the data of users.
For Discord, it’s the VOIP market. They offer the best service, no doubt about it, but when it comes to privacy, they’re downright awful. Your private conversations with other users are not encrypted with E2EE, which means Discord can log them, and sell your “private” topics to advertisers. They’re still in their youth, they haven’t matured yet and had to fund their own company, but let me tell you, sustaining constant investments forever won’t work. Someday they’ll move onto the next big thing. Then you’re all on your own.