Presumption of innocence is a thing, you know?
In 2020 some small servers (50-200 people per server) got cover banned with all their users, mostly for political talk, as far as I'm aware.
I, personally, usually join such small servers while looking for lobby members in older games, I have a couple of them muted except for channels dedicated specifically to game lobbies. If someone starts an "illegal" talk in any other channel on one of these, why should I be held liable? Or am I suddenly obligated to hunt for pipe bomb recipes in any server I join?
No. With Unix-style tools, bare terminal is always more powerful than any GUI. It's just that a lot of people don't want to invest their time into reading manuals and actually understanding how it all works.