A discord server with absurd amounts of over emphasised text, making nothing stand out, filled with emojis and broken up into different messages and sections at the exactly worst places for legibility.
No messages are answered in any channel, and you get amazing sense of all of the technology we have to communicate but zero ability to use it.
Both of those things, plus also that due to Linux is being best served via the command line, so a “GUI” like a window would be unnecessary