Considering the other sites she is on, seems like she doesn't want to spend time in free chat.
On ImLive there is something similar to nude on Cams.com. Models can manually set their status to private. Then it says "in private", but they may or may not be in private. Many do this when they don't want to stay in free chat. Anyway, this is how Laura/Lisa spends her time on ImLive, avoiding free chat. On CamContacts there is no free chat. You need to pay to join a chat room. So again she doesn't spend time in free chat.