I know this has been done before but I feel my friend has excelled herself by announcing the birth of our friends baby AND the engagement of another friend in one posting on Facebook before either had been made public... Both have a lot of family overseas and would take some time to spread the word among their close family/friends and this was 3 hours post events. They even tagged the people involved so that the news would not have been limited to mutual friends. WHY DO PEOPLE DO THIS?