Yeah. I know it is still here. It doesn't seem as pervasive or bad as steemit yet. I have definitely seen signs of it.
I'll call out what I see when I see it. I do know that if my posts reach a certain value it is common for them to get downvoted. I know it is people thinking they are protecting the "voting pool".
As to D/Vs for other things. When they downvote your posts regularly regardless of potential reward amount that is clearly a personal or bias down vote.
I will chime up in those cases and say that I thought these people said communities would solve that. So if they don't like certain communities simply stay out of them.