Neat as that may be in concept, the process laid out in the act is the one that must be followed, and it can't be amended by an individual/business posting some

Neat as that may be in concept, the process laid out in the act is the one that must be followed, and it can't be amended by an individual/business posting some other process on a webpage. As far as I can recall, the DMCA does not specify that counternotices must be filed by mail. Designated agent registrations include an e-mail address. If YC chose to ignore a counternotice because it didn't like something about how it was delivered, but that delivery conformed to the act's requirements, then YC would not have safe harbor protection and would remain directly liable for copyright infringement.