The company anonymised the individual when making the example of what not to do and in response to this, the candidate then proceeds to publically expose herself as the candidate.
It is illegal to use personality based tests as a means of selecting candidate suitability, at least on their own
When used in conjunction with other data points however, personality profiling tools are a great aid to candidate selection - which begs the question, if personality traits are an important part of your selection criteria, wouldn't you be better off using a robust and proven and legally defensible tool to assess this?
In the candidate's defence, the company did ask applicants to supply a picrture from their Instagram feed, which one might consider to be their own personal space. Lord knows my own Instagram feed is chock full of pictures of half naked men so one can only imagine what Kickass Masterminds would make of my application!