Things that quietly disappear
This thread stays in the archive because account maintenance is part of digital systems work, even when it produces nothing visually impressive.
The useful artifact would be a repeatable process: review what exists, decide what should remain, and verify that an export is actually readable. Keeping everything indefinitely is not automatically preservation.
A boundary for this entry
This is a research outline. It contains no account list, password material, or claim of a finished credential-management product. The existing image is archive artwork, not documentation of private files.
A future case study can show the method using non-sensitive examples and describe what was deliberately discarded.