I don't think even free-speech absolutists apply it to a general right to share any arbitrary information, such as copyrighted films, classified war plans, trade secrets, doctor-patient or lawyer-client privileged information, or intimate recordings of people taken without consent (or without ability to consent).
Does sharing a non-intimate recording of someone count as speech? Can the government make it illegal for me to share a photo that a government official thinks makes them look ugly? What about a photo of an official committing a crime? What if that photo was taken somewhere private and without their consent? Or what if it was actually an "intimate recordings of people taken without consent", but one of the people involved was the president and they were recorded in a drug fueled fling with a prostitute? Should publishing that be illegal?
How can you define speech so that it can be applied consistently to specific questions like this? Odds are you'll end up with a definition so full of nuances and caveats that the "absolutist" part of the term is rendered meaningless.
Is a free press not part of free speech? Are incriminating photos only protected speech in a court, but not when published in a newspaper?
I'm just trying to underline that people refuse to recognize the difficulty translating the philosophical discussion of free speech into the complexities of legal definitions. And "free speech absolutists" tend to only live in the philosophical sphere.
An unfortunately overloaded term. 1) free speech absolutist meaning the government should not be censor private citizens speech in any way, 2) or twitter/similar is breaking the law by censoring X speech, 3) or twitter/similar should be considered a defacto public square and therefor the company twitter/similar can not legally censor speech on it, 4) or "I align with Elon Musk who calls himself a free speech absolutist", or etc.
Likely sapphicsnail was talking about the less principled, or not understood by principles by me, variety of people calling themselves free speech absolutist, who seem to dominate, or least be the most vocal, the conversation around "free speech absolutism" in reason years.