From growing up in the Jw land, I have seen a full gamut of people. From intellectual and capable ones, to the "something happened to them" ones. Yes, some need mental/emotional help and then there are the users and manipulators who zero in on the weak. Much like the world in general but in a concentrated way.
JW land is a fish bowl you must swim around in - with encouragement to forgive all for any abuse or weirdness. So it means that if you are "christian" and you follow that advice by forgiving without any sincere "I'm sorry for what I did" from the person, you are just okaying their abuse. And so the abusers never have to change because they are being excused by the nice people. The weird, broken ones are granted automatic "love" that the regulars have to put up with to be christians. And I don't mean that people are wrong being kind to such ones, but JW land forces you to remain in constant contact with them and most will not be seeing counselors or doctors to help them.
In real life, you pick and choose people that you like, but in JW land, that is not an option - at least not at the hall and out in service.