"Microsoft argues that it has a real breakthrough with its Outlook 'Ignore' button. This comes in handy if there’s an out-of-control e-mail thread that you don’t want any part of. You hit 'ignore' and all of the messages in the thread are deleted and so is future e-mail tied to the thread. 'That is one feature nobody else has done,' Mr. Capossela said." - Bay Chang

Actually, it looks like they've implemented expunge level 3, since future messages are deleted, not just archived. :-) - Kevin Fox

I want expunge level 4, in which robots go and attack anybody who even tries to respond to the deleted thread. - Alex Power

I'd implement level 4.5, that demonstrates godwin's law every time. - zio bodhisattva

Isn't that what gmail's "mute" button is for? EXTREMELY useful when tracking convos on FF. - vijay