She knew from the moment she entered Knockturn Alley that she was being reckless with her own safety. Out in public alone she was exposed, vulnerable to anyone who wished her harm. No longer did she even possess her reputation as a vicious enemy to have for protection. Thanks to the Daily Prophet, she was nothing more than a pathetic lunatic in the eyes of the public. Maybe that was enough to encourage everyone to leave her alone. Dangerous to be out alone or not, she didn't care.