She didn’t actually do the scene.

“I turned up and was told what I would be filming would be a graphic rape scene,” she said. "This act could be watched for as long or as little time as the player wanted through a window, and then a player would be able to shoot this character in the head. “It was just purely gratuitous in my opinion.” She refused to act out the “disgusting” scene - which was made worse as she was the only female on set.

It was a stolen unit. As the article says, best course of action is to go back to eBay and report it.

I only wonder if there is something a potential buyer can do beforehand to check if a unit is in good standing with valve.