in-channel message: subject line thread first message: email body
One slack account for your pc one for your phone
2021-07-08 Every major incident gets a public slack channel Your happens every week MI starts re-using the previous MI channel Your team channel is now the MI channel -or- Have to create a channel? Open an MI.
Ask a question in a help/q&a channel and pin your own message to draw attention to it
Thread within 1:1 DMs
Person A posts message Person B starts thread on that message Person B says, "Let's meet on this", intended for Person C Person C is not in the thread, doesn't see it unless they open every single thread