I'm guilty of the occasional "ping" -- but often its after what I think are their normal hours (whatever that is anymore!) and its someone I've interacted with

I'm guilty of the occasional "ping" -- but often its after what I think are their normal hours (whatever that is anymore!) and its someone I've interacted with before. I don't necessarily ask the question immediately because I don't want to make them feel like they have to answer it if they're not actually working. Often it's a question that will only save me ~15 mins of time. Or there is someone else I can ask if they're not immediately available. I personally find the anonymous "Hi $name" really annoying and it often comes on slack from a random IT person from a support ticket I've filed. Why they can't start with, "Hi $name, I'm following up on ticket XYZ. ..." But I don't find 'ping' annoying. Weird.