There are definitely lessons for software makers. Slack had this. Great custom emoji support. Just enough Markdown support. Many other little things that just work. Their recent “rich editor” changes are universally reviled at my company. Even our non technical staff hate it. It took them like 5 minutes to learn old way and they used it fine. This would be analogous to something like adding a feature to gas pumps that slows everyone down or leaves you feeling vaguely annoyed because you made me go through too many screens at the pump.