You are one twisted dude. And I mean that in the most
respectful way. I was all set to make some snide remark
about "macex plus reformat de-obfuscates everything but
variable names and silly algorithms", then I read the
substance. Personally, I think you have found a
counterexample to pg's "allow anything". I'm <bet@rahul.net>, but the login creation form doesn't seem to permit "@".