check out his list of cults and you will find every sect there is, regardless of whether or not it is dangerous.
I think pretty much anybody who has a belief system owes much of what it believes from OTHERS in one way or another. You might not think so but doesn't what we see and read about, and listen to what others say about lifes meaning.... shape most of our thinking? Most of our thoughts are based on what we put in our brain to know......then if were half sane we sort out the shit and except what WE feel is true.
When a person gets to that point .....for many.....they now have a belif system. Thats when it gets called a "cult" by many.....a belief system built usually arouind one or many who got others going with the same line of thought. Cult is has a wide wide definition to many and the dictionary dosen't tell much.