Yepp, that's what they are for, to mess with peoples gaming experience for the lolZ. Please tell me your life story by the camp fire Was that a serious request? I should mention that I'm bad at understanding written sarcasm.
The most intimidating thing for me is the knowledge that you can't reason with them. DayZ is a hard game but it isn't so hard that you HAVE to rob and kill. That's why I find it so intimidating. Bandits mess with other people's gaming experiences just for the lolZ.