I agree completely, and to build on that idea, it is extremely valuable to be able to take an idea from your head and write it down in a way that fully explains the idea, but is as concise as possible. I see this go wrong a lot in Slack. Some people will not take the time to completely form a thought and will instead just type everything that is in there head as quickly as they can. Then others react because they have misunderstood the original point. If you have a few people trying to communicate with this method it quickly becomes chaos. The process of untangling some of those types of conversations can take far longer than the original conversation did.