On Wed, 24 Apr 1996 Foxztrot the Furryous, BTFH, wrote:

Sig characters appear in people's .sigs.  They started popping up all
over the place.  I have one, Rob has many, Joyce has many, WW has
one of Rob's, etc.....

Well, I don't have _that_ many.  Not as many as Rob, anyway (I think)....
(joyce gets out pen and paper and starts counting)

IMO, only Rob's are the ones that are able to appear in fiction,
the rest of them are just plain weird.

Kirna: The rest of us are WHAT?
Calla: Sorry, Trot, but I have to correct you here.  Macken, Kirna, and I 
  are from a story joyce is writing (actually, it's a story that she 
  started over a year ago, but hasn't touched in months!).  It's not a 
  fanfic, though, so you won't be seeing it here.  However, Adam, Tanya, 
  and Emma fit into the 'imaginary friends' category, Mulder is a cockroach 
  from the Official Sig Wars (tm), and Serena4H is a 6-inch-tall Serena 
  clone with the attitude from Hades.
joyce: They didn't have to know all that.  Now this is pure spam.
Calla: It was to begin with.

Foxtrot the Furryous, BTFH

Kirna: Prod her!  She's got two fanfics finished that she hasn't posted!  
joyce: I'm still revising them!  Give me a week!

-joyce, Disciple of Kasumi
Joey-kun no iinazuke!!