In accordance with the content-must-not-be-transient requirement, it must be possible to generate and send links to individual nodes outside of Wicker. Once a node exists, it must remain and its URL must remain intact.
User interface considerations
When you open a link to a node, you’re entering Wicker from a very different avenue than if you found the node through the chat. I guess that the node should be opened with the node explorer maximized in front of an empty chat.