I am sad
The "I am sad" fad/injoke started with Drak, who's random and crazy comics started many fads/injokes themselves or at least laughs from users on the message board. The "I am sad" craze started with one of his comics that used Matrixx's comic sprites (already used in other comics) and contained Sonic, Knuckles and Amy, along with some strange dialog that at one point vaguely referenced Knuckle's theme song from Sonic Adventure. The strip went (or scroll down for the external link to see the comic itself and not have it badly communicated to you through a plain textual format):
Sonic: I am sad.
Knuckles: I care not
Sonic: you knuckles
Knuckles: i not chuckle
Knuckles: rather flexing the muscle
desperate battle
Amy: ween
The trend became hugely popular in the Moogle Cavern, especially in other comics. It became "the thing" to rip off pay homage to the strip in your own comic, usually devoting a whole strip to it that was largely the same, though with modifications to the dialog, characters or some other aspect. Naturally, the became pretty popular in the message board too, and even simple expressions of being down in the dumps, or apathy, could suddenly bring on unexpected quoting.
