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

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.

No freedom is absolute.

Child pornography

What does it mean to live "the 'underconsumption' life"?

HIPAA violations

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.

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.

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Revealing classified information

Perjury

Conspiracy

Are you able to lie, even though you have Aspergers?

Fraud

Trade secrets

Insider trading

Whole Foods tells staff cyberattack at its primary distributor UNFI will affect product availability - TechCrunch

Terroristic threats

Freedom of speech does not apply to:

Insurrection

The Nippon Steel Deal: A Master Class in Winning the Working Class - The Free Press

Threats of violence

Revenge porn

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.

What are the differences between promotions and sales?

And much, much more.

False advertising