How would you know that? Perhaps I am here to kick ass.
It is quite common one starts to be a big JW apologist when he experiences doubts. The same applies to JW apologists coming here. Often they have some doubts and they come here to reassure themselves that those who left the org "have not found anything better". But you know your reasons, I do not want to judge them...
Your example of McDonalds. Let us continue with this example. So imagine you work in McDonald. When you leave the company, McDonalds will start to instruct employees to stop associating with you otherwise they will be fired. McDonalds will instruct your family to stop talking to you, they will show them video saying they should not pick up your phone call. At the same time McDonalds employees will come on Saturdays mornings to other people homes trying to convert them to McDonaldism.
Fortunately, McDonalds does not do this. Is it then proper to compare them to a religious cult?
But if they stay in their own home and grouse, which this site perhaps is, at most that makes them obsessive, not necessarily mentally unbalanced.
As you are 'obsessive' with JW, writing apologetic books and witnessing on apostate websites, other people are also 'obsessive' with a cult that destroyed their lives and families. JWs are so 'obsessive' they knock other people doors to convince them about their 'truth'. People here will not come to you on Saturday's morning to tell you are in a false religion and soon you will be destroyed in Armageddon.