Stefano,
Can I add a check-box when people are registering for bbpress/wordpress (http://draft.hippressurecooking.com/wp-login.php) or posting a comment (http://draft.hippressurecooking.com/fancy-in-a-flash-pressure-cooker-porcini-mushroom-pate/) for readers to add themselves to the newsletter?
Everything else about the plug-in looks great!
Ciao,
L