I see it on YouTube too. Go to any video of Mark Carney and all the comments are Russian bots spreading misinformation. Go to a video of him a week ago and the comments are universally positive.
youtube is a different cesspool. ever since they announced they wont deny election deniers, its was game over, and then sudden increase in anti-woke, anti-lgbtq+ shorts pop on your feed if your not logged in. and then you see comments on scifi shows too. and showing trash influencers.
Yeah I have to heavily curate my YouTube but if you do it's still full of really great stuff. I also have to keep myself on top of it, it's easy to let yourself slip into trash content now and then.
The comments are pretty universally bad though, even on the good content.
You have to allow it though in the name of free speech... Let the potential idiots expose himself, centering people only potentially creates a Streisand effect
on reddit its usually framed in a way "western countries, you are the blame for this and that,,,etc" or they said they are not "native speakers" which is the biggest telltale. also posting certain articles from questionable sources.
also on politic sub ive seen them collapse or filter out comments that arnt even trolly or spamming, it agrees with everyone on that thread, but the "russian trolls are not deleted"