I was doing it all the time. It always seemed like a great idea to share how I feel with everyone at 3 a.m. I can just go through my numbers list and send a text to everyone.
Drunk facebooking was even worse because of public embarassment. I've sent sexually
abusing messages to some girls, posted nasty pics and videos on people's pages. Deleted them in the morning, but you just can't un-send the message. I was (am) a sad/depressed drunk, drinking alone at home, so the status updates were especially bad. Had to delete my FB account several days ago.