The biggest misconception about communication is that it actually occurs.
Internet culture has wrecked people's ability to communicate effectively.
Acronyms are useful for insider communication.
If you're talking to someone you barely know, you're an idiot if you use insider lingo with them without first having established that they're fluent in that particular insider lingo set.
@joe do you also speak German to Mexicans? Do you speak Mandarin to Venezuelans?