If freedom of speech is absolute, how come it's not applied...

Revealing classified information

Threats of violence

False advertising

Is there any way that I can sign up for multiple newsletters from as many companies as possible at once using a single form?

Freedom of speech does not apply to:

Trade secrets

HIPAA violations

Market's Slide Broadens in Afternoon Trading - Barron's

Perjury

Insurrection

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.

What does it mean when we dream about demons, ghosts, monsters, etc.?

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.

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.

Terroristic threats

Can you write a short story with a twist ending?

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.

Revenge porn

Insider trading

Which album is your favorite that's now 50 years old (from 1975), and what's the best song on the album?

Child pornography

Conspiracy

Fraud

Common Brain Parasite Infecting Up To 30 Percent Of Americans Disrupts Neuron Communication - IFLScience

No freedom is absolute.

And much, much more.