[rhizome]

>Additionally I really am fed up with people splitting everything in Slack into multiple lines so that I receive multiple notifications from what should have been a three to five liner.

On IRC this is called "scrolling" and depending on your relationship with the person you can ask them if someone is playing a joke by hooking their enter key up to their spacebar.

In general I think what's happening is a tell that a person doesn't act with fully-formed thoughts when they open their mouth.