Interesting question.
I think that when I first discovered this site, I visted alot. Mostly because I was so lonely, missing my friends (who were my family) in the Truth and needed to find others who could understand what I was going through. I was overwhelmed with the large scale of this site- so much information and research on so many different things. I love the balance of ideas expressed and that everyone is welcome here. We are all at a different place in our lives and we all have some connection to either living as one of Jehovah's Witnesses, or know someone who has. There is that "Witness Culture" that no one can possibly understand unless they have been a part of it.
For me, being disfellowshipped was like being plopped into a foreign country. I loved everything about being a Witness, being thrust out unto the world due to my own stupid mistake was the worst experience of my life. But, it does bring some comfort to know that one is not alone.
They say that our brains can only handle so many functions at once, and that a number of them are taken up by things life remembering to breathe, keep our heart beating, and digestion. For me one of those core functions is "processing" (like a computer with the hour-glass icon going) my spiritual needs and everthing that I have experienced in my life surrounding it. Every so often the hour-glass icon in my mind goes away, and I'm ready to take in new information and it's during these periods (or when I am processing pain and sadness) that I come here to research, study, or share. As time goes on I "need" this less and less because I have processed enough of what I have experienced (good and bad) and now that I have made piece with my past I am ready to look forward.
For me being a Witness was a wonderful experience. It's been a long time and I am not yet ready to proceed with any particular spiritual 'gameplan' at this point, but, I know that no matter what happens I have found on JWD hearing ears and a shoulder to cry on, and the chance to encourage another, as well as a wealth of information.