Slack replaces in-person conversations, which have the same deficits, and many of the same benefits. It works best for remote and hybrid teams, where the in-person discussions aren't possible. It can even work well for in-office teams by allowing some collaboration to be more async. It's way better than email for this.
It's terrible for being off the record. All Slack should be considered durable for the employer.
It's terrible for being off the record. All Slack should be considered durable for the employer.