De-anonymizing users of French political forums:
▻http://archive.hack.lu/2013/dbongard_hacklu_2013.pdf #privacy
TL;DR : #Gravatar leaks #email adresses.
Anyway, why does anyone expect #pseudonymity when registering with a personal email address ? Depressing stupidity.
By the way, this is not a new attack - see ▻https://web.archive.org/web/20111219233019/http://rgov.org/2010/11/27/gravatar