That may be, but they're not very selective either; otherwise, more meaningful downvotes would be made. They may not be random, but it's not better than just throwing mud on a wall and seeing what sticks either.
You can't just hurt people and take the moral high ground thinking you help more than you hurt, so that's ok. Taking is taking. Stealing is stealing. The point of the downvote is to adjust the value of the post.
I worked for hours in the AZ heat to get nice sunset photos on my way overpriced camera that I really can't afford. I used the upvote bot to set a fair value for the photos and the time I put into taking them. Then @grumpycat comes and downvotes it to $5.
Yeah. Maybe they're not random, but they might as well be random. This is a ABSOLUTE ABUSE OF A DOWNVOTE. The point is to adjust and prevent abuse, but this account has taken it to the extreme and it's just abuse on the other end. There is no balance.