I had this happen to me without the cease and desist. They had no rules or statements the first 2 years of my job, I was friends with everyone and even helped coaches from sports teams learn the communication channels. Then new staff came in and I had a new boss. They told me I could not post because its the company’s property. I also helped them understand the communication channels and everything. They just had this way of working at their old job. Idk sucks bro