Nan Flanagan was a bitch. As the face of the American Vampire League she was probably the best known vampire in the U.S. That didn't stop Bill staking her for threatening to "out" Sookie's fae lineage.
Molly was working with the Vampire Authority and created the iStake -- a wonderful contraption that didn't work. They have her time to fix her mistake and Bill later uses it on her when she refuses to worship Lilith.
I don't know what it is about me that makes people think I want to hear their problems. Maybe I smile too much. Maybe I wear too much pink. But please remember I can rip your throat out if I need to. And also know that I am not a hooker. That was a long, long time ago