"There are too many malicious downvotes and not nearly enough normal downvotes".
I don't remember exactly who said that and the exact words but I believe this was an interesting take. To be honest, I don't think I've been a victim of the so-called malicious downvotes although I hear people complain about them a lot. On the other hand, I see a lot of content that, in my opinion, just should not get rewarded getting away with it.