why i created a blog?

I used to believe that facebook is a much better social network...but phew!!! again i was wrong...
I just really don't get why people in facebook are so much formal and are always upto protecting their image...my words to them is "if u don't want to share anything about yourself in facebook then why have you come there...."
People who just share jokes and quotes(mostly love..huh..) in facebook ...they just don't know how stupid and waste they are..