using the word 'overrated' or 'underrated' to critique so...

using the word 'overrated' or 'underrated' to critique someone's work means that you believe that your own perception of other peoples' perceptions of the work is part of the work and somehow important to it.  it also means you view your own perception as objectively/accurately placing worth on the work, rather than accepting that a used bandaid in the gutter is more highly rated to someone than a certain book/work.  basically, it means you are (for whatever reason) upset about how other people view something, and feel the need to voice that upset-feeling, rather than just accepting both your own opinion and those of others as equally accurate ratings.