First players to reach X total XP:

100,000,000	S O Z O	February 7, 2019	See rest
200,000,000	S O Z O	April 17, 2019	See rest
300,000,000	S O Z O	December 31, 2019	See rest
400,000,000	S O Z O	November 21, 2023	See rest
500,000,000	TBD		See rest