Libraries are gardens, not warehouses
TL;DR
An archive grows more useful through care, not accumulation. Revisiting and connecting a small set of readings can do more for understanding than collecting a much larger set.
Tags work as paths back into a question rather than a perfect classification system; an imperfect collection you visit teaches more than a perfect one you maintain.
The maintenance itself is thinking: letting older readings change meaning as your interests change is the work the garden metaphor names.
What this adds
Familiar
Overlaps with readings already in your library. See the connections