If I owned a blog hosting website, could I register as the DMCA contact point for $105, and cover all blogs I host AS WELL AS THEIR POSTS? IANAL, but based on

If I owned a blog hosting website, could I register as the DMCA contact point for $105, and cover all blogs I host AS WELL AS THEIR POSTS? IANAL, but based on the fact that Youtube does this with one contact address for all their users, I would guess you could do that.