For an appraisal to be regarded as important it must be: from a competent source perceived as highly personal reasonable in light of what we believe about ourselves all of the above

- reasonable in light of what we believe about ourselves
- .consistent and repeated
-  perceived as highly personal
- . from a competent source

Without all the things above, an appraisal couldn't be used by the client as a reliable measures to make his/her decision.  In some cases, it might be considered as a con that could be punishable by fines or jail time 

The will be a : great britain wanted french gold mines