Yeah, - in literature is used as a break or pause, especially on the internet. In this instance, I believe it replaces a comma, which is also used in coding and can cause problems in the Title meta tag on some browsers, I believe. However, I don't remember the question-mark being there.
It's kind of how like you would state music
Title of the song - Album - Artist
Freak On A Leash - Follow The Leader - Korn
for instance.
In linux/unix command shell, this would be replaced by a |.
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--- ?Be who you are and say what you feel because those who mind don't matter and those who matter don't mind. ~ Dr. Seuss ---