I mustn’t be reading the right blogs: I didn’t see anyone complain about Gmail encouraging bad quoting, i.e. answering above the quoted text, transforming e-mail exchange into ICQ conversation logs, whereas this media had always been so apt at handling discussions point by point, idea by idea, paragraph by paragraph.
It was already hard fighting the bad habits Microsoft encouraged with Outlook, but if Google gets on the train e-mail is definitively screwed.
Let it be known that I reserve the right to blacklist anyone who misquotes e-mail replies. That’ll be my effort to make the world a better place.