No, not a government or corporate surveillance.
But a modern platform consolidation, zero tolerance practices and shitty spaghetti code written by a cheapest contractor - does.
Remember good old days of "forums"? Apart from some of the outliers on both ends (both cesspools and invite only elitists) a majority of the forums had this concept of warnings. So a user may have been rude or broke a rule or just got unlucky, he get a warning. Then maybe additional warnings. Or next there is "TEMPORARY" ban (absolutely alien concept nowadays), for a few days, then a few months, then a year. And it was actually possible to come back after a year long ban and see that the admins honored their own rules and did indeed unban you. I know a friend who was a frequent posted on a city automotive forum who served two year-long bans and he still posts there, soon it will be 3 decades or so :) . And the list of issuers, bans, dates and ban reason was usually public for all.
So all of that culture of being nice and polite is gone now. There are no warnings anymore (well, HN is tiny little exception, even then warnings are informal here, no automation like it was done in the previous century). Bans are instant and permanent, there are no temporary bans anywhere anymore, except for some deliberately gloating bans, like "you are banned until 2126, haha". And in case a discussion platform is owned by a corpo providing other services, they will ban user everywhere too. And mods are often using some crappy code to autoban users based on some primitive pattern matching. Write an ambiguously interpreted comment and poof, off you go. Some platforms even officially allow report abuse, like FB where a bot owner can take down any post, regardless of its content.
Ironically, the lack of niceness culture and extra harsh extra fast punishments didn't lead to the better talking spaces. Instead people are now using hundreds of throwaway twink accounts and now they don't moderate themselves. Why would they, the punishment to a rabid foaming at the mouth crazy user registered 1 day ago and to a old timer registered 15 years ago and who said some less radical comment in a latest political discourse or doubted some newest fad or whatever, maybe he was simply genuinely mistaken as happens to all - well, the punishment is the same. So why bother? Why write 4 paragraphs of reasoning to explain why entity A is bad in some specific way and the reasons for that, when user can just fire off a one liner hate message and get the same results? And so on.
As a weirdo who never uses twink accounts I'm in a minority and by old habits I still post as if I'm on some oldschool sane forums, but I do often stop and rewrite parts, to avoid being automodded into oblivion. And I certainly don't post on FB or Instagram or YT or other platforms anymore. The collateral damage over there would be catastrophic.