What happens if you openly declare you are an aethiest, I don't mean go round forcing my view on everyone , but when pressured to go to the kingdom hall etc you stated you are an aethiest and no longer believe in God , surely you can't be accused of apostasy as you simply don't believe in anything ? Anyone experienced this ?
I believe so, but not necessarily for being an atheist. What I mean is, the WT and the JWs will point at you, will shun you, will attack you if you let them, for as long as you state that you believe anything and everything that is not exactly what/how they say. Atheist, or believer of any else, or non-believer of anything doesn't make any difference. To them that doesn't matter. You are not believing the WT crap. That's enough for them to give you the same treatment.
In fact, just look at some people's stories here on how they have been shunned simply for questioning one or two of their believes while still being active JWs in good standing. So if they go to that extent in their own crop, of course they will treat you like an apostate for not believing in anything. To them there is no difference.
Also, please note that they judge everything based on how they believe things are. Some truly view atheism as if it is some kind of organized entity. I've even heard JWs claiming that people "joined atheism" as if they took atheism studies, baptized as an atheist and go around trying to convert others into atheism or attend some kind of atheist temple. That's how they view the entire world outside, as some kind of unworthy of living enemy. So if you question anything or believe in anything differently from whatever they believe, you are "wordly" and an apostate. End of the story to them.