lammert - 11:14 pm on Mar 31, 2005 (gmt 0)
Great find msgraph!
I think the following defines the sandbox:
 Search engine 125 may take measures to prevent spam attempts by, for example, employing hysteresis to allow a rank to grow at a certain rate. In another implementation, the rank for a given document may be allowed a certain maximum threshold of growth over a predefined window of time.