[_ck_]

Ipstenu, my skip-akismet plugin works on wordpress installs too, though there is some kind of subtle bug I can’t seem to find where it doesn’t catch everyone on the wp side, works great on the bbpress side however.

If you meant what will notify users of comments being held, this will do it:

http://txfx.net/files/wordpress/notify-users-of-moderation.phps

What’s crazy is that was written back for WP 1.2, and yet it’s still needed, 5 years later.