Psychotic is either a robot or multiple people. He's in too many places at once.

kishi is a computer program created by Square.

clout is a robot who comes online sometimes. He looks kind of like the Short Circuit robot.

RSL is a second account maintained by all the staff.

Loony BoB, Calliope, and Spuuky are all the same person. Furthermore, all the members Loony BoB has claimed to have met in person, yet have never met any other members except each other, are all the same person. This could either be the same person as Loony BoB or some accomplice of his, who may or may not be human.

eestlinc and I are the same person. We're human, I guess, in the sense that Jesus or Spider-Man are human.