Humanity is taking into consideration what the other person may be doing, whether you are disturbing them and whether it's nice to make them wait for your quest

Humanity is taking into consideration what the other person may be doing, whether you are disturbing them and whether it's nice to make them wait for your question after typing "Hi". It's a very cultural thing whether and how much greeting is appropriate (I've heard this varies widely even within the USA). But empathy for the other is universally cool and appreciated. So you take a moment to consider the other, and you put your preferred greeting first, and add the question in the very same message. Bam! Best of worlds! Polite, nice, collegial and not making people wait and lose focus and switch context (which clearly is less of a deal to some people, but when it is, it's a big deal for some others). Reading the comments in this thread from the people defending to split the "Hi" and the question into two messages, I really wonder what is their reluctance to just type everything in one go? Because I'm not buying that saying "Hi" in a separate message and then waiting is somehow more polite than saying the very same things but in one single message. See, it sounds to me that it is them who don't like waiting. Sending a "Hi" first makes it more likely you have the other's (waiting) attention by the time you finished typing the question, so that you get an answer right away, not wasting any of your precious time. If you were to type your "Hi" and the actual question in one message, you spend your time and effort typing that question but the other person only gets the notification as you press <send>, and now it's you who has to wait in idleness. Much easier too, to quickly fire off a "Hi" first and only then start thinking about actually formulating your question.