One of the most annoying and bad-taste shocking developments in OS X was when they changed the Messages app so that it still gives you notifications even if its

One of the most annoying and bad-taste shocking developments in OS X was when they changed the Messages app so that it still gives you notifications even if its not running, unless you deliberately enable Do Not Disturb. It's really really glaring and galling how bad that choice is. It's Microsoftian.