Twitter is more concerning, as it has connected society's social enforcers (those who are concerned with which views "have no place in our society") with media,

Twitter is more concerning, as it has connected society's social enforcers (those who are concerned with which views "have no place in our society") with media, government, employers, etc. In terms of privacy, people have never been that concerned with "who's listening" so long as the scope of use is limited (eg, security cameras in carparks are seen as a sign of safety, not espionage, and people will happily mouth off loudly to their friends on balconies, untroubled by the ordinary passer by who might look on and scowl at the trash they might be talking). It's not the overhearing and data collection part of zersetzung that's the most problematic -- it's the army of volunteers ready to take part in public denunciation and social undermining that people grow to fear.