I have had a lurker (using an aol address!) start posting supposedly
in-character game posts.

I assume I'm dealing with a generic clueless newbie here, but there's
a possiblilty at the back of my mind that I'm dealing with a malicious
idiot trying to take the piss.

What's Standard Operating Procedure here?  Do I try to reason with
this guy, or do I just quietly unsubscribe him/her/it an hope they go
away?

Below is the boilerplate email I have sent (twice)

--->--- Cut Here --->---

This game rules exactly like a tabletop RPG with a GM (me) and some
players (the other six).    It's not a freeform game or a MUD.

Any extra players must submit a character to me first so I can work
them into the storyline - We can't have characters suddenly
materialising out of nowhere!

Also new players can only join when the game reaches an appropriate
place, and there's a limit to the number of characters I can handle as
GM.

--->--- Cut Here --->---

--
Tim Hall, http://ourworld.compuserve.com/homepages/timjh

"The Very Big Stupid is a thing which breeds by eating The Future.  Have 
 you seen it?  It sometimes disguises itself as a good-looking quarterly 
 bottom line, derived by closing the R&D department"
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