"LISTSERV site administrators' forum" <[log in to unmask]> 
wrote on 12/20/2006 02:30:56 PM:

> Be careful what you ask for, you may get it.  Eventually, you'll see
> either/both of spam/worms posting to the list as the list address gets
> scraped.

There are some very valid reason for using it, such a public contact 
addresses.  I beleive [log in to unmask] is actualy a list. (I munged the 
address intentionally)