Mo, that anonymous guest posted back in 2010, but has left a mark in my memory. Indeed s/he would be a perfect specimen for a comedy. I fail to see any sign of parody or tongue-in-cheek in her/his messages, so if they are not serious and real, I would call them fakes or literary fiction. In particular, the message of Dec. 07 cannot be explained as joking. If your argument is "such a person cannot possibly exist" - yes, s/he can. (GUEST, if you are still here, prove me wrong.)

Cassandra, of course, did the usual Mudcat parody.