[zarzavat]

I believe that's talking about general insinuations, e.g. "you're just a russiabot" and the like.

The GP account above with only one comment that is singing the praises of a particular product is obviously fake. They even let the account age a bit so that wouldn't show up as a green account.

[i_have_an_idea]

The most alarming to me thing is that it seems to be happening at scale. This is one of dozens similar posts I've seen all over the programming communities with similar characteristics (high praise, new-ish accounts, little if any other activity).