I haven't been through the WDW screeners. I'm not sure what they will detect.
Recently, at
Disneyland, I saw security confiscate a plastic container of marijuana. Would the WDW scanner have picked that up? This was on Bats Day/Goth Day when there was so much metal on guests' clothing that almost everyone had to be scanned with a wand.
Recently, I saw them confiscate a plastic portable child's urinal (
https://www.amazon.com/ONEDONE-Portable-Child-Potty-Urinal-Emergency-Training/dp/B01AOW90MCfrom) from the bottom of a stroller. Would the WDW scanner have picked that up?
I get that people don't like waiting in lines, but I'm surprised by some of the animosity on this thread. I appreciate that Disney goes to such great lengths to keep the parks clean and safe. An important part of creating that environment is passing through security.