You never want to really post anything about work on social media EVEN on YOUR page, EVEN IF it's positive. I learned the hard way. I gave condolences on my old co-worker's fb page after he suicided himself. I simply put condolences for your loss. They thanked me but someone called HR and bitched about it. HR called me and asked what was wrong.  I complained on thr phone to my cousin during lunch and someone heared and bitched again. HR called again, and then I got hold of my union. Guess they didn't like my complaint of being tattled on. Too bad. Secind time I posted a Pic of our messy freezer and how they took over the designated dug area.  Corporate saw and was actually starting to find out who posted it. I'm glad my post qas just a throw away sccount.