email includes all sorts of low priority or informational only messages that don't need to be addressed quickly. Chat is things that are high priority but not u

email includes all sorts of low priority or informational only messages that don't need to be addressed quickly. Chat is things that are high priority but not urgent. They can be safely ignored for a few hours. Urgent is a phone call or sneaker net. When I get people that think chat is for urgent I educate them but most people in the city I live already understand that urgent requires a voice or face to face to reduce any ambiguity. This is nothing like filtering email. You'd never use email if you expect a reply quickly unless it were paired with a visit.