Would you send an email that says "Hi", then another that says "I have a question", then another with your question?
Would you send an email that says "Hi", then another that says "I have a question", then another with your question?
Stop wasting my time. If sending "Hi" makes you feel better, fine, but the substance had better be on my screen by the time I look at the window, or you've wasted my time.
"Hi Dude, I've got this thing I need help with. Here is the description of what it is and what I am having a problem with."
It's not an issue if they put it in the same chat message, it's the "Hi", send message, "I have a problem", send message, "This is what the problem is", send message that drives me up a wall.
And if you REALLY need him to get back to let you know if he can help out immediately, you can send a second message along the lines of, "And sorry to be a bother, but I need help pronto. Please let me know if you can take a look at this right now." At that point, it's not a big deal if there's another message, because you haven't wasted time in relaying it.