Why did Lurker leave? 
OK, this is really hush-hush, but from what I heard, he sold some mafia secrets and had to enter the witness protection program. He was supposed to start a new career as a -certain unspecified cartoon chararter- at a -certain unspecified cartoon-themed theme park-.
So, either he's at Disney world, or he got turned into an egg roll, mob hit style, complete with carpeted outer shell.