How to not display my own name?

[Dmitry Yaitskov <dimas@home.com>]

Uh?

I have a "sent" nnmail group:

(setq gnus-outgoing-message-group "nnml:sent")

so, I wanted to display To: instead of From: headers in that group's
summary buffer. Here are that group's parameters (last 5 lines are
practically cut'n'pasted from the gnus info):

((display . all)
 (comment . "mail sent by me")
 (visible . t)
 (gnus-extra-headers quote
					 (To))
 (nnmail-extra-headers gnus-extra-headers)
 (gnus-summary-line-format . "%U%R%z%I%(%[%4L: %-20,20f%]%) %s")
 (gnus-ignored-from-addresses . "dima"))

It does not work, hence my 2 questions:

1) Why? What have I done wrong?

2) Why is it all so complicated? What's the big deal with replacing
"To:" with "From:" in a summary line? The headers are in the messages,
why do I need to write all that stuff about extra headers and ignored
addresses instead of just specifying a different
gnus-summary-line-format? There *must* be a reason, but I did not get
it at all, and would appreciate somebody to kindly enlighten me. Many
thanks.

-- 
Cheers,
-Dima.