I think one of the biggest problem we all faced as JWs was intolerance. JWs are like many other fundamental religious group, very intolerant of others views and opinions (unless they think they can convert them).
It can be quite hard for ex-JWs to dump this state of mind and some who become activists can keep this mentality for a long time. ie their view is right and everyone else is wrong. Everyone is entitled to their own beliefs and opinions, they are not entitled to force those beliefs and opinions on others. After all isn't that what we all escaped from?