I feel comfortable going one more level.
A couple of years ago in a conversation with a "pioneer", I talked about information in their material that I was uncomfortable with. She asked where I got the information and warned that I "must not go to ANY other website other than ..." then she wrote down two or three "WTS approved" sites.
I asked her how I'd know that the information was accurate if I didn't look at the arguments for and against the ideologies. My brain shut down with her first few sentences. All I remember was that I got a 3-5 minute dissertation on Satan who knows the JWs represent the Truth ruling the internet and that, to be safe, I needed to stay away from all other sites. I couldn't believe what I was hearing.
For any non-jw reading this - it's one thing to read about these instances and reason that the stories represent isolated events and people. When you really get what's going on, experiencing events like this will take you to another level of concern for them.