I agree, you shouldn't try to get someone's attention before typing a complete thought. But it's the original attention-seeking message that's the problem, not

I agree, you shouldn't try to get someone's attention before typing a complete thought. But it's the original attention-seeking message that's the problem, not the complete thought. Maybe what I'm saying is that we use Slack at work almost completely asynchronously? https://www.nohello.com/ https://www.nohello.com/ This same coworker will also "formulate his response quicker" without letting you finish what you're saying in person, too. Then he'll interrupt you to go on some tangentially related rant, and won't stop unless you interrupt him back or he's repeated all the points of his rant three times. So maybe he's just bad at this in general, and it only happens to manifest as too many notification pings in threads and DMs on slack, when they're not really the core problem here.