I doubt anybody from the industry tracked him down and made him go away.  Headphone AMPs&#x2F;DACs are typically made by smaller vendors or are low volume for big vendors.  The major vendors are selling the &quot;Beats by Dre&quot; brand to people at Best Buy, and that isn&#x27;t the same crowd NvAvGuy interacted with.<p>The audiophile community is full of fanatics as extreme as religious fanatics, and probably he valued his sanity and mental health over dealing with those types of people.