You could write yourself a program that checks emails to a certain address, then automatically posts the content for it.
a few problems though
I believe it's against the AUP*. And you'd need a VPS or at least a computer that's always connected to the internet.
Though the program itself would be pretty simple, just copy your login cookie and use that. TGC forums don't use anything high-tech for the cookie. (at least, I'm pretty sure that don't)
Of course you'll probably never make this, so I've got a far better option! Request it
HERE
*
EDIT: It isn't. I was just thinking of the mass-downloading rules.