"Saying "hey", then typing the next message is the worst"
Pro-tip if you're one of those: If you look at the slack interface, there's not a lot of visual difference between two messages in a row, and a single message separated by two newlines (SHIFT-Enter if you don't know how to enter those).
It looks exactly the same to type "Hey.\n\nJust wanted to check up on the status of the de-fooification project. How's that going?" as it is to send those as two separate messages, it looks just as polite on the screen, and it's way less annoying.
Not relevant for your "Hey" example but I often do submit successive thoughts as separate messages rather than one less disruptive message because it allows readers to add reactions/responses to the individual thoughts.
Pro-tip if you're one of those: If you look at the slack interface, there's not a lot of visual difference between two messages in a row, and a single message separated by two newlines (SHIFT-Enter if you don't know how to enter those).
It looks exactly the same to type "Hey.\n\nJust wanted to check up on the status of the de-fooification project. How's that going?" as it is to send those as two separate messages, it looks just as polite on the screen, and it's way less annoying.