Someone in cyberspace is posing as Bee Shaffer. A blog called New York Notebook and at least two Twitter accounts, @iambeeshaffer and @beeshaffer317, have recently been launched with posts supposedly from the daughter of Vogue editor-in-chief Anna Wintour. But they’re all bogus, said a Vogue spokesman, adding that Shaffer doesn’t have a Twitter account or a blog, private or public. Twitter techs removed the @iambeeshaffer account Tuesday afternoon, but the other was still up as of yesterday.