AoPS 

Art of Problem Solving. A forum for math enthusiasts, with a forum for an unusually large number of the best math students in the United States and the world.

If you go to AoPS and aren't an USAMO qualifier, prepare to be humbled. AoPS is full of them.

AoPS by inquilinekea May 19, 2005

AoPS 

Art of Problem Solving. A dating site for asian tryhards.

yo, I have a new boyfriend
already? its been 4 days oml
haha yeah, his aops username is forester2015

AoPS by simonicornie March 31, 2021

AOPS 

A forum of gay autists who do meth.

Yo what's your aops?
I'm not gay you faggot.

AOPS by threebody135 August 23, 2018