Am I a selfish asshole for not allowing my email server to be the relay whore of the internet?

I just hate postfix log files filled with messages not related to my own domain.

Need some help,
I am setting up postfix and I need it to accept all emails, from any domain (without a domain list), and forward it to a local address on the machine (It pipes into PHP, toscript@).

I have a catch-all working where it is forwarding the emails to the toscript@ mailbox dispite of the to address. But if I send an email to it that is not in the domain list it gets rejected as it's not in the domain list, Is their a known way to force Postfix to accept all domain emails without having a list of the domains in the server.

I have searched but no luck of a working solution, I have looked at the following with no working solution

Server Fault: 133190
Server Fault: 422468
Server Fault: 179419
Server Fault: 105641
Server Fault: 161321
Server Fault: 318426
Server Fault: 514643
Server Fault: 410053
Stack Overflow: 4772229
Super User: 353488

Looking at the docs I do not see anything for it but making it an open relay but I can't figure what settings to update to make it the open relay to capture all of the mail.

I know I am missing something but I can't figure out what it is!

::Rant::
I'd like to use Postfix as it seems very stable and it's not a hack job as some of the projects that I have seen. It also can communicate with all of the proper channels for SMTP and the Protocol as well as some very easy configs.