It seems to be it should be easy to do blind testing in this case. Just load up some music in WAV and FLAC format and hit shuffle play. Make a note of your impressions, and only check the playlist when you're done.
I think people are just imagining these differences. That's only an insult if you take your subjective impressions of sound way too seriously.
I think people are just imagining these differences. That's only an insult if you take your subjective impressions of sound way too seriously.