We also wanted to provide a list that was professional, courteous, and friendly to developers of all skill levels.
So far they seem to be succeeding.
If you think that a mailing list is a little retrogressive in these web oriented days all I can say is that it might be but there are lots of advantages to having a digest of the day's posts just turn up in your mailbox without having to do anything. You can of course read the archive at the website before you decide to sign up.
What can I say to recommend it more than to add the simple fact that I've signed up.