It's a tight line. As someone in Sales, it is helpful to know people's email. But sending spam just creates more powerful spam blocking email systems, which u

It's a tight line. As someone in Sales, it is helpful to know people's email. But sending spam just creates more powerful spam blocking email systems, which ultimately screen out real email too. The hack is cool. Public directories of everyone's email address (which is the logical extension) - maybe not as cool.