#2. Ruby Riott added a second T to her name to avoid copyright infringement.

Once Vince McMahon filed a lawsuit against rival WCW, alleging that Kevin Nash and Scott Hall could not even perform as themselves since they became stars in WWE and were, therefore, his intellectual property.
The lawsuit failed, and led to a slew of wrestlers changing their ring names to their legal names, such as Jim "Warrior" Hellwig, in order to avoid similar lawsuits. The end result of these legal shenanigans was that the WWE is very, very careful about obtaining copyrights for the characters they create.
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For whatever reason, they had problems getting the name Ruby Riot copyrighted. Rather than wait for the matter to be settled, they added a second T to her name and copyrighted that instead. With either one or two t's in her name, Ruby is still a force to be reckoned with.
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