As we should have learnt from the audiophile business, unless you are doing a blind study, people will write all kinds of BS about their impressions that tells

As we should have learnt from the audiophile business, unless you are doing a blind study, people will write all kinds of BS about their impressions that tells you nothing about whether they really are able to perceive difference and whether the impression itself is positive or do they just like the feeling of trying something new. Much of this sounds just like the people describing the "warm" sound they get after changing their cables to golden ones.