I find it a little odd to see all the responses to Brian's Post.
While the point of logging in to the Portal once a year has the secondary benefit of telling a computer that you're alive and well, the primary point seems to be identifying those users who have gone away and didn't bother to tell anyone. Let's face it, there are a lot of people who go away and don't say a word and then the allocations start to clutter up in the Portal again.
Seriously, how long does it take to log into the Portal, do nothing, and log out... once a year? Less than 10 seconds? I can't believe how many people think this is such a huge inconvenience.
Bill