Apparently that's a misconception. It says she refused to say anything anti-American and used nuanced english to subvert the broadcasts. 

Edit: Actually, the "Tokyo Rose" I was referring to was a specific person, not what you linked.  https://en.m.wikipedia.org/wiki/Iva_Toguri_D%27Aquino

Edit again: Actually you were talking about her. What I said stands, about her specifically.  

Japan did the same thing, using Iva Toguri Aquino ("Tokyo Rose") to promulgate propaganda to U.S. soldiers in the Pacific, during WWII.

https://en.wikipedia.org/wiki/Tokyo_Rose

Seems like she did less than Facebook and Twitter and was paid less. 

TIL Nazi Germany employed an American citizen, nicknamed "Axis Sally", to disseminate propaganda to US soldiers during WWII. She was later convicted of treason.