Good topic. Got the T-Shirt.
People used to speak very highly of my illustrations - most of which I realize were completely flawed now. I think I used to use illustrations as if they were proof of something which they never ever are. The gullible in the audience treat them that way too, as they do the pictorial illustrations in the publications.
If anyone is familiar with Greco-Roman history this whole "teaching method" actually parallels the way in which plays and certain events in the Colloseum and other amphitheatres were used. e.g. they would get some guy to dress as a swan and literally rape a woman publicly. This would reinforce belief in the idea that a god called Zeus actually took the form of a swan and seduced/raped a woman called Leda. Just seeing it reenacted was used as a form of proof in the minds of the audience.
So many people during the Watchtower study comment now on details in pictures as if they're proof of something that actually happened, even though it's an artist's impression. It's the same syndrome.