Drape's Takes

In response to Jennifer Wagner's recent post about Twitter High, I dedicate the following riddle to Graham Wegner.

A-hem...

What do you call a social network of people that:

• Is full of a wide range of vastly different people,
• Limits dialogue to brief spats of "conversation" - frequently resulting in missed opportunities for actual communication,
  
• Can seem wildly unfocused and often chaotic,
• And is often a favored target for unbridled criticism by many?