Loss Of MyBO Points Stirs Up Obama Social Networking Site By JONATHAN TILOVE Patty has been one in a million for Barack Obama. Since early this year, she's made more than 76,000 phone calls on behalf of his presidential bid and posted more than 1,300 blog entries on my.barackobama.com. Along the way, she amassed more "points" than anyone else among the million folks registered on MyBO, as the campaign Web site is known.Then, without warning, MyBO this month eliminated its system of ranking supporters by accumulated points. In its place was a new "activity tracker" rating each member's activism on...