Using the quotes 'worse for extroverts' doesn't seem justified as it's not a quote of anyone. Does being a single quote permit its use as such?
http://ninemsn.com.au use quoting like this so often in many of their headlines because their research has shown the quotes in headlines generate more clicks. They could easily be omitted, but the headlines would appear more casual.
Comments
Using the quotes 'worse for extroverts' doesn't seem justified as it's not a quote of anyone. Does being a single quote permit its use as such?
http://ninemsn.com.au use quoting like this so often in many of their headlines because their research has shown the quotes in headlines generate more clicks. They could easily be omitted, but the headlines would appear more casual.