We often have enough information to be confident that the incoming data matches a record in Salesforce. However, whether the better quality data for important fields is in Salesforce or the incoming data is unknown. So we can't confidently overwrite data without a manual validation.

For example, P Ennals might match to Peter Ennals. I am happy this is a valid match and therefore want to set it as a ready record. However, I don't want P to overwrite Peter.

The functionality could be such that I specify per formula which fields require manual validation. E.g. for records where name or address for ready records are being changed. Then I could review these records only and choose whether to use Salesforce data or incoming data.