[adamc]

This is the wrong point of view for many (probably most) workplaces, where the officially "maintained" information repositories are often very out of date and where the alternatives are usually: 1) Find a conversation you can at least start from, or 2) Get someone to give you a brain dump now.

Sure, a curated, well-maintained repository could be better. It also requires work time that usually doesn't get budgeted for. Slack is a band-aid, but a useful one.

[duskwuff]

Being able to say, "I know this issue came up a few months ago, let me see what we decided back then" -- and being able to back that up with a link -- is a superpower. Not everything that comes up in discussions gets documented.