I think that something similar happens in HN. Pro-Ukraine comments often gets downvoted quite a lot. It makes no sense to have so much pro-Russian voices here. It doesn't fit with the experience that the western world is clearly against this invasion.
I think what happens there is that some comments pro-Ukraine are actually anti-Russian and quite aggressive. Or just being rude to people commenting pro-Russia. Generally aggressive comments are less upvoted. And there are no pro-Russia comments wishing violence on Ukrainians
There is also pro-Ukrainian but anti-WW3. Many people disagree with a certain level of punishment and demonization towards regular Russians
Another view is people actually not pro-Russia but anti-hypocrisy that how come this invasion is different from the others from the past 20 years mostly by US EU UK... Even though one does not justify the other, where is the punishment for destroying people lives? Whether it's in Europe or Africa or Middle East or Latin America...
It is pro Ukrainian, but they don't just, reiterate existing propaganda, but try's to analyze what actually happening.
It was one of the rare voices, that didn't try to yell the sky is falling when there was fighting near nuclear reactors.
It is being mass reported, by bot farms. Can somebody at Twitter look into it?