I asked Github to take down some infringing Capcom content. I'm 100% sure that the Capcom doesn't want the content there because it's software to bypass their copy protection. I specifically asked Github to bypass the DMCA route and instead call the takedown a "ToS takedown" or something else just to let a non-authorized third-party request content to be removed, and took it via their regular form instead of their DMCA form just to get the content removed via a another route.
I got the following reply:
Thanks for your question. Unfortunately, the law prevents us from accepting DMCA takedown notices from individuals who do not have authorization from the copyright owner. You can read more at our DMCA Takedown Policy page:
Please let me know if you have any other questions.
Now to the question:
Is it actually prohibited to take down content if a non-authorized individual sends a DMCA notice? What I have understand, DMCA sets the minimum requirements (what you must take down), and then you can take down more material than that, because it's your site. Nobody forces you to have user-submitted content that you don't want (let's say off-topic content or whatever).
I understand that a "DMCA notice" from a non-authorized individual is not a valid DMCA notice and the site are not required to take down the infringing material, but are they prohibited from doing that if they choose so?