I check it every two hours, on odd numbered hours.
If you text me expecting a response, and you aren't in my priority pool, I'll get back to you. After all, it is my phone, not yours.
My work slack is only available during my work day. Out of hours, it is closed.
Saying "hello" is not some devious plan to interrupt you, but rather a thing that humans do rather than act like a bot.
Maybe I've missed the feature hidden somewhere? I'd really appreciate it for group chats in particular. I need to know there's a discussion, I don't need my phone to notify me for every single message.
While we're all venting: How's about when you're writing a considerate reply that takes a while because it's a complicated answer, and they just blooming fire off another random message in the middle, destroying thread chronology!
Like, how do you write a multi-stage message where multiple stages are absolutely unavoidable, without the recipient answering just the first bit and not reading the rest?
I really struggle with it. (Because I am verbose. Overly verbose.)
But I try to frame that request in the context of each message.
Whereas someone I know has basically a copied and pasted demand letter at the top of each email, saying he won't reply unless people have read the whole thing. It's not as cute as the legendary Van Halen rider M&Ms request [0], and it just comes across as damaging.
[0]: http://www.thesmokinggun.com/documents/crime/van-halens-lege...
(line, enter send, line, enter send, ... etc.)
When it's particularly bad, I actually hit the DND button on my Mac and go about other business until I think they've finished.
Bear in mind you're effectively tapping me on the shoulder to stop what I'm doing with every message.