I learnt this the hard way. To be brief, I am an intensely self loathing person. I thought I would feel better about myself if I said some HORRIBLE, nasty things to other people, and become a jerk and asshole. I talked about how their dads are deadbeats who abused them, about Alzheimer's running in their family, about how they have no friends, etc etc. (I don't know if the things I said were true.) I spent a day doing that, and, to say the VERY least, I regret all of my words. Throughout the day I also blocked a number of people on Facebook, and facebook was my sole means of communication with those people. Just thought I'd share my experience. Don't make the same mistakes I made.