[mindslight]

I'd say an apt comparison would be a neighbor occasionally hearing what you're saying (and possibly cozying up to their closed front door to listen), versus your neighbor coming out onto the porch every time you're talking, attempting to join the conversation, and even filming you with their cell phone to share with their friends. The latter is wildly socially unacceptable, and at the very least we'd shun someone who did this. Unfortunately most people seem to ignore electronic devices in their social analysis.