I can see this getting out of hand quickly. Humans have a tendency to amplify anxiety of local, improbable events. This is essentially a weapon that can quickly impact morale and elevate disruptive conversations that will become far removed from the situation with too many participants. I'd have optin, in-person support groups where nothing leaves the room and it is limited in size. Sometimes spreading a problem across more people does not fix it, it only makes it worse.