This thread is not about jail, but preventing you from posting something on a specific platform. (Moderation) If you think that's exactly the same as hanging people, you need to talk to actual people outside...
On the other hand, moderation can stop troll farms posting negative things about homosexuality non-stop. And it can help stop things like doxxing and promoting criminal activity and downright evil stuff.
I don't oppose privacy tools existing, specially for edge cases like investigative journalism and oppressive regimes as you mentioned. I mostly oppose people using and promoting unmoderated or inadequately moderated services. I guess what's being discussed here is mostly infrastructure not services, but still I think the infrastructure may be able to help promote or facilitate healthy services.
I've seen the outsized harm free for all spaces (usually "for teh lulz") can do to society, when we thought it was just innocent "shitposting".
I encourage people to participate in spaces where you know there's ethical moderation (that also leaves leeway for cultural differences), avoid otherwise, and don't encourage anyone to participate there. I think HN is a pretty good example of that.
They don't want to hang you for it.
They just want you to never hear anything positive about homosexuality and the people they are hanging.
Understanding this is very difficult for people who support their governments form of censorship, like everyone working at googleface.