When I got baptized, I was asked questions out of the back of the OM book. There were quite a few questions that made it explicitly clear that I was submitting myself to the Watchtower's demands and that the Watchtower had the right to disfellowship me if I stopped following their rules. I doubt there are very many people who have gotten baptized that don't realize they can be disfellowshipped and shunned if a committee of elders decides to dish out that sentence.
I was pretty young when I got baptised. I don't remember the questions very well. I knew I could be disfellowshipped and shunned, but I was never made aware of all the offenses that could lead to this. There used to be an arrangement when unbaptised people could be announced as a disapproved associate and shunned. I didn't see baptism as being dangerous because I figured that I could be shunned either way. In my case, I disassociated. I didn't know at the time that just leaving the organisation would result in forced shunning.