Any source for that? Media loves to blame banks for everything, but when you go into the details it always seems pretty marginal (e.g. the HSBC Mexico stuff).
A bank will drop you if they even think you might be doing something (demonstrably on paper) illegal. When opening an account, some of the very first questions a bank asks you are "where did you get this money" and "what do you do for work" - proactively making you responsible for committing to some type of story. All of the illegality you're trying to reference is happening under a backdrop of reams of paperwork that make it look like above board activity to compliance departments. Without that paperwork when shit does hit the fan, people working at the bank do tend to go to jail. But with that paperwork it's "nobody's fault" unless they manage to find a few bank employees to pin it on.
Needless to say, this type of prior restraint regime being applied to free-form communication would be an abject catastrophe.
Your analogy is terrible and doesn’t make sense.
If you provide a service that is used for illegal behavior AND you know it’s being used that way AND you explicitly market your services to users behaving illegally AND the majority of your product is used for illegal deeds THEN you’re gonna have a bad time.
If one out of ten thousand people use your product for illegal deeds you’re fine. If it’s 9 out of 10 you probably aren’t.
This logic clearly makes the prison of someone like the owner of Telegram difficult to justify, since 99.999% of messages in telegram are completely legal.
This really isn’t that complicated.
Keep in mind that as soon as you store user accounts you keep user data, which is perhaps a trivial form of eavesdropping, but clearly something law enforcement takes an interest in.
You’re making the opposite point of what you intended.