First players to reach X total XP:

100,000,000	Rockos	February 3, 2016	See rest
200,000,000	Rockos	April 4, 2016	See rest
300,000,000	Rockos	July 23, 2016	See rest
400,000,000	Rockos	March 17, 2017	See rest
500,000,000	TBD		See rest