[Slartibartfast]

She may be revealing that someone is on a secret task cos she thinks if the person fails then they're automatically up for eviction (the two secret tasks she had to do both had this punishment for failure). The more people up for eviction then the less chance she goes so she's right to try and protect herself in the house. The only thing is, she's losing the house extra rewards by outing the secret tasks, most of which won't put the person up for evction if they fail. But she doesn't know this, and so I don't really have a problem with her doing this.