Doesn't matter, we need to get rid of all these platforms. Pinging large groups of people shouldn't be this easy. Maybe get rid of internal email as well.

Want to contact somebody? write a note and have it delivered. I'd bet it'd be more efficient, when you need to limit your messages.

Just imagine how much calmer your day would be, if you wouldn't have to deal with "who ate my lunch?" or "there's a car with the headlights on at a carpark on the other side of campus" with the same urgency as actual directed communication.