It is of course different if its done by a state agent acting on behalf of state censorship.
But Wikipedia in English is heavily censored and rewritten by activists, presumably acting as individuals or loose associations of them. Try expressing sketpicism on Wikipedia about whether there is a climate emergency and whether wind and solar are the solution, or part of it. If your entry lasts 24 hours that will be a miracle. So don't get too enthusiastic and complacent about the English version either.
As for the impulse to censor (and indeed criminalize) speech, the recent tendency in the English speaking world to criminalize something called 'hate speech' has quite strikingly, as expected, moved increasingly into attempts to criminalize dissent from a given approved line.
The latest and most striking example of this is the Scottish Hate Crime and Public Order Act. The Scottish government's own account of this is that
"New measures to tackle the harm caused by hatred and prejudice come into force today".
You notice the objective: to tackle the harm caused by hatred and prejudice. Not to tackle the harm that can be done from acting on hatred and prejudice, the aim is not to penalize that. Its to tackle the thing itself, hatred. Also prejudice. Good luck with that!
There is a BBC summary here, pretty reasonable account:
https://www.bbc.co.uk/news/art...
The result of this was that the day it came into force, the calls starting coming in, and in the first week reached 8,000.
The question of course is what is "hatred and prejudice". In Scotland it appears to include doubting that men can be turned into women. In English universities it can apparently include expressing skepticism about veganism while on the phone in one's own room, but unknowingly being overheard from the room next door:
https://freespeechunion.org/un...
In the English speaking world we do not have the kind of officially sanctioned censorship and penalization of some kinds of speech that the post cites in Russia. There is of course something similar in China. And in the US at least there is the Consititutional protection of the First Amendment.
But a similar role is being played now by the small army of zealots in the English speaking countries who define disagreement as hate, and vilify and target anyone publicly dissenting from the party line. And by 'target' is meant attempts to drive people out of their place of employment (the Guardian is notorious for this) or calling the police who then will record the accusation as a non-criminal hate incident.
Harry Miller for instance (obviously a Monty Python fan) received such a visit after tweeting:
âoeI was assigned Mammal at Birth, but my orientation is Fish. Donâ(TM)t mis species me.â Miller also tweeted: âoeTranswomen are women. Anyone know where this new biological classification was first proposed and adopted?â. He later wrote that the statement was âoebollocksâ."
https://www.theguardian.com/so...
So don't sit there reading about barbaric and authoritarian Russia and think that everything in the West is hunky dory. It isn't. It happens through different mechanisms, but it still is happening.