Why:
The html tags weren't removed from the text that was rendered at the
social metatags (twitter & facebook), neither scaped so adding a quoted
text would endup breaking the metatag content and writting in plain
sight the description at the browser view.
How:
Saniziting the text and truncating it afterwards since we don't need to
send more than 140 chars for twitter/facebook social cards.
155840a130