First players to reach X total XP:

100,000,000	Manwhofish	April 10, 2016	See rest
200,000,000	Manwhofish	March 4, 2017	See rest
300,000,000	Manwhofish	May 21, 2019	See rest
400,000,000	Manwhofish	July 10, 2022	See rest
500,000,000	TBD		See rest