At `full` the anonymizer returns the document unchanged, so the salt has nothing
to act on - but the switch was enabled and looked like it did something. A
control that silently does nothing is the same class of fault as the preview
button and the archived-level label: the screen implying more than is true.
Shown disabled with the reason rather than hidden. The setting is still stored
and applies the moment the level changes, so making it vanish would hide state
that is still there; and a settings screen whose controls appear and disappear
as you touch other controls is harder to trust, not easier. The label dims with
the switch so "not active right now" reads at a glance.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
