Back in the eighties I knew a JW sister who had Smurf tennis shoes. After hearing the rumors, she decided to burn them. It was too bad, too. She was a poor, single mother who didn't have that many pairs of shoes and little money to buy new ones. She really shouldn't have burned them.
About that same time there were rumors about Proctor and Gamble being a satanic corporation. Their corporate logo was said to be evidence. Many JWs I knew were refusing to buy any P & G products. Of course, that was later proven to be false information too.
It seems to me that some groups of people are predisposed to accept these kinds of rumors when they come around. The JWs are one of them.