I'm reading one of the Strike books, and one character is described as openly despicable, obsessed with death, violence, intimidation. The character is not taken at face value - even though he openly claims to be evil, amoral bastard, women 'fall over themselves to get him'.
As with much of JKR's writing, I end up pondering her insight here. It's absolutely true that there are male predators who are brazen about their predilictions and are given a pass, and sometimes even painted as more alluring because of it.
It just occured to me how much this fitted with 'when someone tells you who they are, believe them.'
It's like we have a collective mental block that wants to dismiss open evil. I suspect The Gift of Fear is probably appropriate to mention here, too.
I also think this tendency to want to dismiss the open threats and worst excesses that women have faced these past few years springs from this underlying thought that a man who is openly horrible must be putting on a front, or be justified somehow in his bad behaviour.