It will never cease to amaze me that people (outside the media, politics, etc.) use their real name to post controversial things on social media, especially about their own employer.
Whether you agree with their stance or not, I think it's admirable that they stand up for others who are presumably lower on the employment pole, at the risk of their own jobs, especially given the current economic situation.
Putting your name, reputation, and economic security on the line -- especially in a world where anonymity is easy -- is a sign of backbone and reinforces the message that you are delivering.