The thing is, like all people, there are some good and some bad. The downside to people using social networking is that often the 'keyboard warrior' effect is too strong. That is to say, they write or post things on the internet that they would never actually say or do in real life.
I think ruling out the access to such a tool like Facebook based on the actions of one idiot is a darn shame.
Personally, I am on Facebook but I limit the people who are 'friends' with me to people I actually know and wish to interact with (the latter rules out me not having a number of my family as FB friends
).
I ensure my privacy settings are high and regularly review them. I am a Assistant Principal in a high school and often have students look me up on the internet (they're clearly bored) and they find precious little from Facebook. They have more success from forums such as these esp. when they figured out my number plate is the same as my forum name here and saw the myswag sticker on my Pajero
.
Point is, I'm quite fine with what I put on the internet, I'm very concious of my online activities and the digital footprint I leave. Facebook is a useful tool to connect with family and friends. Nobody sends emails or letters these days. They all do it via Facebook. If I didn't access Facebook I'd be on the out. I love seeing photos of my nieces and nephews and I access some Facebook groups which are like mini communities such as this.
So, yes it can be a good thing and if you're not aware, can also be a pain. Like everything in life do your research before you jump in with both feet. If in doubt ask someone for help. I'm happy if you want to shoot me a PM, but no, I won't FB friend you