They were however, not unique to Charlie Russel's Bible students.
Frankly I don’t see anywhere in all the comments any reference as to this method being unique to CTR.
The WT is the one that for more than 100 years has represented that their way of selling is unique and that they are not selling but preaching. I am pretty sure that anyone who has been involved in field service knows that is one of the first lines that you will learn as a witness.
As to the other religions I don’t think that they are the subject of conversation and I for one couldn’t care less about all those groups.
For sure this material is slanted is about the WT and no one else.
My focus is the WT and their preaching-selling techniques.