If freedom of speech is absolute, how come it's not applied for private spaces and for the Internet?

You have freedom of speech. If I loan you my computer, I can tell you not to use it for certain things, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Revealing classified information

Insider trading

What makes Nigerian scammers skilled at impersonating people? Is their success a result of intelligence or other factors?

Terroristic threats

That’s what it is. You have no right to use other people’s stuff. If people let you use their stuff, they can tell you how you can use it, and they can tell you to stop using it any time they want.

Trade secrets

Why do flat earthers think using globetrotter, globetard, and other insults will make the educated arguer fall for the silly flat-earth belief?

No freedom is absolute.

False advertising

HIPAA violations

According to Trump, Ukraine started the war. Why?

And much, much more.

You have freedom to travel. If I loan you my car, I can tell you not to take it out of town, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Threats of violence

What is the best case of “You just picked a fight with the wrong person” that you've witnessed?

Freedom of speech does not apply to:

Fraud

Perjury

What are some signs he is deeply in love with you?

Insurrection

Child pornography

Revenge porn

Why is there no great temptress figure in any of Tolkien’s major works?

Conspiracy

If you’re wondering why free speech doesn’t apply to the internet, it’s because you have no right to use other people’s stuff for free.