The richest player?
Tetrazon
I would personally say Starcraft Forever because he rolls in z-keys and his account is worth top dollar.
Bowstring Badass
I would say one of the dupers that was never banned and has over 1750+ armbraces.
Tetrazon
Vitues
Id Say barracus... Hes filthy rich
Arkantos
Sorry, but talking about how rich people are isn't really a topic fit for riverside.