Chat applications with no opinions about whether messages are meant to be transient.
Leads to bad habits and confusion about how important information is presented and organized. It is all too easy to identify circumstances in which information should be stored in an accessible document and instead is constantly distributed to others via Slack (or other chat applications) during live, repetitive Q&A discourse.
Change your Slack workspace's message retention settings to just a few days. Yes, your history will be permanently deleted. Give teams some time to properly organize if it's really that bad. See [[Writing Stack]]. If the Q&A format is best, try [[Stack Overflow Teams]].