@moecki, I'm afraid that's a whole different thing you're experiencing there; not part of the mosquito bot farm.

I'm not a Steemit historian, but that looks more like the aftereffects of a very old disagreement between some of the witnesses.

That said, it IS very annoying when you find yourself on someone's automated downvote list, typically for no other reason than you upvoted content by someone another person was having a fight with.