&gt; <i>Content ID exists so YouTube can ease big partners.</i><p>It&#x27;s probably more to ease their own burden. YouTube likely receives a huge number of takedown requests daily, but with Content ID a lot more can be automated. Also, without Content ID, there would probably be a lot more companies just doing poorly-scripted takedown requests, which would make the experience of everyone on YouTube a lot worse. See: <a href="https:&#x2F;&#x2F;www.eff.org&#x2F;deeplinks&#x2F;2015&#x2F;02&#x2F;absurd-automated-notices-illustrate-abuse-dmca-takedown-process" rel="nofollow">https:&#x2F;&#x2F;www.eff.org&#x2F;deeplinks&#x2F;2015&#x2F;02&#x2F;absurd-automated-notic...</a><p>&gt; <i>I am not sure about the three strikes being a part of DMCA. Are you sure?</i><p>The DMCA includes a clause about the termination of &quot;repeat infringers&quot;; I assume that YouTube&#x27;s strike system is their easy-to-understand-and-apply way of addressing that. From the DMCA:<p>&quot;The limitations on liability established by this section shall apply to a service provider only if the service provider has adopted and reasonably implemented, and informs subscribers and account holders of the service provider’s system or network of, a policy that provides for the termination in appropriate circumstances of subscribers and account holders of the service provider’s system or network who are repeat infringers&quot;<p>(source: <a href="https:&#x2F;&#x2F;www.law.cornell.edu&#x2F;uscode&#x2F;text&#x2F;17&#x2F;512" rel="nofollow">https:&#x2F;&#x2F;www.law.cornell.edu&#x2F;uscode&#x2F;text&#x2F;17&#x2F;512</a>)<p>As for your last point, that does sound broken. Perhaps the content owner of the song you used decided that they didn&#x27;t want people using it on YouTube after all?