Randall recently died in a math accident and they have been using DNA found in the ball pit to clone him every 2 days. The clones are usually found to be nonviable so they are nurtured until they have the capacity to update the comic and then liquidated before apoptosis kicks in, sparing them much pain, confusion and terror, but creating an increasingly large pile of dead Randalls.
Jeph realized this and was disgusted enough to remove the link.
You have the real answer. Do not go to the Ask Jeph thread.
