Tonto calls John a "Stupid white man." In Dead Man, which stars Johnny Depp, the Native American character repeatedly calls people "Stupid fucking white man."
Box Office Bomb: With a production budget of $225 million ($400 million including marketing), the film needed to earn over $800 million worldwide to break even. Instead, Ranger got blown out by Despicable Me 2, the former earning only $48.9 million in its first five days (compared to about $143 million for Despicable), ultimately pulling in around $260 million. This movie has not only surpassed John Carter as Disney's most humiliating flop, it is in the top ten (adjusted for inflation) biggest box office bombs in movie history.
Creator Killer: Subverted; the film's failure had almost nothing to do with Disney's exclusive big-screen partnership with producer Jerry Bruckheimer being allowed to expire (which was more a result of creative differences, and Bruckheimer's still going to be making movies with Disney from time to time), but given the timing, you've gotta wonder.
When Jack Wrather bought the rights to the property in 1978, he sued Clayton Moore to stop him from appearing in public as the character, hoping to establish a new actor in the role for an upcoming movie. It ended up being an enormous PR disaster resulting in a successful countersuit and the film itself becoming a Franchise Killer. Indeed, if there was a Razzie award for "Worst Publicity", The Legend of the Lone Ranger would've been the first recipient, by a unanimous vote.
Franchise Killer: Pretty much did for the Lone Ranger franchise what Batman & Robin did for the Batman series. Needless to say, don't expect this series to pop up again anytime soon.
The Other Darrin: In the radio version, Brace Beemer replaced Earle Graser after Graser was killed in a car accident. This necessitated the Ranger becoming incapacitated and unable to speak for a few weeks while management looked for a replacement. (Graser's "Hi Yo, Silver' continued to be heard long after his death, however, and this extended into television and movies as well.)
Beemer's voice was deeper and richer than Graser's, suggesting that the Ranger had got his Heroic Second Wind.
Additionally, Clayton Moore was temporarily replaced on the TV Series by John Hart due to a dispute over either salary or creative differences.