Do If You Care, Don't If You Don't
It's a matter of whether you care about the habitablezone or not. I still care, but am rapidly moving towards who gives a damn. Don't blame those who have already reached that point.
It appears even space cadets are more passionate about the every day world than space. Maintaining grudges on CE seems to curry more interest than the constant flood of new info on space. I have to say that as keen as I am on sending people to Mars a small matter of 3,000 dead in a terrorist attack takes priority for me, but I wish we could reach a relatively stable world state where space was my main interest again. I really wonder if current events should have ever been added here if the true goal was a top of the line space board.