Why not just write it into Federal law that a site can act as its own registered DMCA Takedown Agent, instead of having everyone go through additional red tape and pay a $105 fee to run a blog.
In a way it seems like the fee to register is a freedom of speech issue. Pay an inconsequential tiny fee to run a blog, or potentially suffer huge financial losses. Kind of like the old Poll Tax from years ago.
It seems like being proactive as builders and maintainers of the internet, and getting a new field added to the WHOIS data for a DMCA takedown email addresses would make the process easier to administer for the complaintants, and more in keeping with Freedom of Speech that the United States is founded on.