Quote from brithoover
As stupid as it was to use her picture as her avitar, allnurses is supposed to be anonymous and I think it would be unfair to use that against her
Anonymity on the internet is never a guarantee. Many facilities require employees to sign off on the social media policy. Basically, anything that you say about work that can be attributed to you can cause you problems. Had this happen with a major event where I worked, where someone posted details that hadn't been released to the general public, and suffered some pretty serious consequences. After that, we all had to review and re-sign the policy.
By using her real picture, this person completely threw anonymity out the window. As the saying goes, anything you say can and will be used against you.
Good tip to keep in mind: if you wouldn't say it publicly, don't say it on the internet even if you think you are doing so anonymously.