The amount of frustration and emotion that can be stirred up by an apologist is very telling. There is obviously a huge reservoir of unresolved anger and disillusion waiting to be tapped.
It seems as though anyone who appears to be associated with JWs is seen as a visible scape goat for these feelings. Most apologists or trolls are dissociated JWs who are caught in the in between.
They are no longer in the Watchtower but have not full let go and become 'part of the world.' They visit to see what ex-JW land looks like. They are perverse and unkind because they have not yet got a handle on their own emotions. They long for the security of the Watchtower but are attracted to life in the wild. They need to replace the feeling of approval they lost when they started doubting their mother organization.
They need help and understanding.
Unfortunately people who are in pain themselves are unable to see their jibes as a call for help.
Trev