No, what you see are nurses being human. We all have bad days, but we also have good ones.
You aren't going to remember the posts that say, "I made a difference today," but you are going to remember clearly those that show another side of nursing, the bad days.
There are many great places to work, many days that you impact someone's day in a positive way and tons of great coworkers that you can count on at work for help/a shoulder to cry on/a ear to vent to.
It's like anything else in life - but maybe we should post more about the good days, the patient or family that appreciates everything you do and the coworkers that don't leave you out a limb.
I love being a RN. I have been a nurse for 18 years and although I have had bad shifts, I wouldn't change what I do for a minute.......(unless I win the lottery and then I will be a retired nurse)...