I didn't like it when I was "in." I'd squirm and count the minutes until the end of each meeting. I left because I held different goals. This was mid-1980s.
I didn't think at all about the WTS for many years.
I found out about the changing Generation teaching in 2003, that it was no longer the "Generation of 1914". The person explaining it to me was a JW, and explained the two different changes that occured since the mid-80s. I was in disbelief that a core teaching could change. I laughed at the person who was trying to convert me back. I kept saying, "I can't believe the GEneration teaching was WRONG." At this point, I was aware of 1975 . . . but not of the previous failed predictions. I pretty much thought the WTS was full of shit, but not a cult.
In 2004, I started uncovering false statements in the literature and seeing the sociological control of the group. I read a few things about cults, but it was sinking in about 1 inch into my brain that the JWs might be a cult.
In 2005, I learned of this site and others, and started to read cult psychology books.
Now, I've read other materials about other cults, and see how much they all work the same. Today, in my heart and mind I know that the Watchtower is a cult.
************************It was a slow process for me to realize that it was a cult, perhaps because I wasn't "in it" every day and at every convention like others. Perhaps because I was raised in it, and had not other reference point from which to develop an opinion of what was "normal religion" verses a cult.********************************