1. to show you are a Cyberian warlord and fully armed electronic ninja;
2. to demonstrate your facility for bad puns on your name;
3. to allow a literary agent (me) to send querier (you) an email.
Silly me, I know.
The idea that perhaps I'd actually want to be able to READ your email address and use it is so five minutes ago.
Hopelessly arcane, that's me. If I was a really DEDICATED agent I'd walk over to your house and introduce myself personally.
Don't think I wouldn't if I had to but "had to" is Thomas Pynchon, and last I looked at this query, you aren't.
So the next time you write me a letter and think you should use:
1. 8 point font
It makes me cranky.
Very very cranky.
When I am cranky I look at really brilliant work (yours) and say "yuckola."