If we stretch your argument to absurd then we can say that putting a political prisoner in jail also doesn't limit his free speech: he is still able to write letters.
> putting a political prisoner in jail also doesn't limit his free speech: he is still able to write letters
Free speech is a big topic. I would argue that yes, that person’s speech has been curtailed, but depending on what they were jailed for (saying something offensive versus stabbery) it could be reasonable.
Unless they were jailed for their speech, what you describe would not amount to censorship.
