Four sentences of API behaviour under a checkbox. Two facts actually change the
operator's decision: it cannot be undone, and QRZ.com cannot reach QSOs uploaded
before OpsLog started keeping their record number.
The rest — how Club Log matches, that the local delete happens regardless, that
the log records each answer — is true, and belongs in the log and the code where
it already is. Documentation in a checkbox hint is documentation nobody reads.