The only time that I can understand someone going the intentional DA or DF route is if they tried to fade and the JWs wouldn't leave them alone. My brother experienced that situation. My younger sister (his elder sister) was still in and she kept telling the elders he was confused and needed help so they kept calling on him... in person... to try to get him to go back to the meetings. My brother tried to DA and they didn't accept his letter of resignation! So he joined the Navy. And that finally got his point across.
In any other situation, I personally feel that intentionally DAing or DFing is just supporting their pretense that they have some power over us. They don't. I got baptized and it is only a contract that holds up in their heads... and in our actions if we let it. As far as I know... there is no government in the world that will enforce a baptismal contract with a religion. They will allow it to uphold religious freedoms but they won't acknowledge it as a way to force someone to be in any particular religion. So... why give credence to the idea that the JWs have that kind of power over us?