Someone posting a lot of comments in a thread doesn’t necessarily mean much, beyond them engaging with the thread and replying to multiple comments as they scroll through. That isn’t to deny their bias, just to point out that their presence and bias doesn’t necessarily point to some kind of organised action.

Edit: ok I didn’t have to (nor think I would have to) scroll far down to see that they are clearly a troll. The whole “it’s important to counter false narratives”, while clearly delivering a biased narrative, pretty clearly shows they’re not an honest actor.