What I am referring to are the reviews where different units
are compared and perceptions of differences in sonic
performances are claimed which can't
be validated through differences in measured performance.
Accuracy or lack thereof is irrelevant. I would like to see
these subjective perceptions of difference validated through
DBTs. I don't think that is too much to ask of the
professionals performing these reviews.

Actually I think it might be too much to ask. I don't know that I would call
all the reviewers for Stereophile professionals in that most of them are not
making a living reviewing equipment and it really is a hobby for them. Asking
such people to do worth while DBTs is asking a lot IMO.