you should write to ICANN for their public comments section on behalf of DirectNIC to oppose the new .XXX TLD. I bet you'd gain a ton of adult business registering their domains at your registrar for representing what the majority of the industry wants. It doesn't hurt that you also have one of the best, if not the best domain registrar.
And think about it like this, even if it does go through, you will still get to reg new .XXX anyways, but people will remember you stood up and fought against it. It's what I like to call a win-win. GoDaddy wrote in and opposed it, I wonder how many webmasters will be willing to register domains there in the future...
I saw you already make one post about how its only about the "clowns" behind it. Why not make your voice heard loud and clear in the public comments section on the ICANN board.
The email address to write in is:
xxx-tld-agreement@icann.org.