Is Ezra Bridger Really Supreme Leader Snoke?

After the death of his parents, Ezra is motivated to destroy the Sith and the Empire. This was part of his reasons for seeking out the Sith holocron after Yoda told Ezra to go to Malachor. How can Ezra turn to the Dark Side if he wants to destroy the Sith? Primarily because not all Force users are either Jedi or Sith. Cherrut Imwe, a new character introduced for Rogue One, uses the Force to compensate for his blindness. Maz Kanata was  revealed to not just be Force-sensitive, but an actual Force user in a deleted scene from The Force Awakens. A special-effects supervisor at ILM revealed that in a scene which was later cut from the final film, Maz uses the Force to collapse the roof of a tunnel while fleeing from the stormtroopers. The Inquisitors use the Dark Side of the Force in Rebels, but they are not Sith.

Sith generally style themselves with the title "Darth," or simply "Lord." Neither Supreme Leader Snoke nor Kylo Ren use these titles. If Ezra previously eradicated the Sith before becoming Snoke, this might explain the lack of the title.