Facebook or Friendster?

Here are some facts about Facebook:

• Facebook was launched on February 4, 2004.
  


• Mark Zuckerberg founded Facebook while he was a student at Harvard University.
  


• Website membership was initially limited to Harvard students.
  


• The website currently has more than 110 million active users worldwide.
  
  
  However, in Brunei, Friendster seems to be more popular.
  
  Here are some facts about Friendster:
  
  
• Friendster was founded in Mountain View, California, United States by Jonathan Abrams in March 2002.


• It currently has more than 85 million members worldwide and is mostly used in Asia.

• it caters to men and women interested in meeting people due to different reasons.

Actually these social networking sites are meant for members to find friends or connecting with old friends...so I dont understand why people like to use nicknames etc. Are they trying to let people NOT finding them? In that case, why on earth did they join in the first place????