I agree in principle, although specifically with slack this is problematic. With emails, wikis, repos, it's easy to index them, or share them with a search engine or LLM. Slack is a moving target; they have the Slack AI, but if you don't enable it, it's hard to just grab all messages from a channel or a thread (and god forbid, you have a channel with multiple relevant threads). A lot of clicks required.

I have found slack all but useless for retrieving knowledge.

People simply don’t read emails, and ignore documents.

I don’t miss emails. Wiki devolves into a mess after a couple of years. Sharepoint has poor accessibility as there’s this constant churning between the app space and the web space.

I really think if you want to get people to take a document seriously you have to present it and walk people through it. If you get feedback and integrate it then it has collective ownership and it’s more interesting than a soliloquy.

But according to the popular glib, and I would say incorrect interpretation of agile principles, documentation is considered wasteful.