Sorry, I have found no evidence that this is true. I have seen many who are suppose to be 'experienced" give too high or too low domain appraisals. that is to say, much higher or much lower than the domain actually sells for eventually.
And let's not forget somehting else. THe only way to truely appraise domains somewhat accurately at retail is to have a slew of "experts" from different backgrounds and industries as no one person can ever know everything about every keyword and its popularity/usefulness within a given industry.
One of the bigger problems I see in the appraisal section is folks that get opffended becasue they think their new domain it is worth more for whatever reason, justified or not, educated reasoning or not. But again, this is to be expected and not much you can do about it. You would have this even if the appraisal forum was only accessible for "expert" appraisers to post appraisals.
