I know someone whose husband admitted to her he was having an affair, when they went to the elders his response to their question was "I don't want to talk about it" which they seemed fine with. However, when JW hubby brought up that JW wife expected him to pitch in on household duties (laundry, cleaning, cooking) cause they both worked (her long/long hours - him 9 to 5 job), the elders told her to read the scripture about the capable wife and she would strive to be better cause then maybe her husband would be happier w/ her (translation - then maybe he would not have a wander eye and [you know what].
I know it is not the same as physical abuse, but mental abuse is just as bad. The mind games can cause last scars that only the victim feels.
I was not surprised when I heard about claims of abuse, because if you think about it, the religion is all about control. Those who go to it on their own have a thing about control. So if men who are given power are of the impression that their wife is not under their control, they will lose their temper and abuse them. What recourse does the JW wife have, none and she knows that.