- calls [Recently Active Threads] in full thread mode
- builds a list of all root nodes in which the user has participated
- calls [Recently Active Threads] in Root-and-Node mode
- builds a list of all root nodes
- calculates the intersection of both lists
- prints those nodes as links to the free nodelet
This would have the advantage that the effect would get be affected by the "last checked" setting. mmh, maybe also provide a "have seen them all" button in the nodelet? Comments welcome.