I'm how to go about getting the "Is SO Emo" title. I know what items I need (All). Can you borrow them from someone else, get the title, then return them?

People do it all the time x3

So as far as I know, it's perfectly fine.

Head on over to the Achievements forum and there you'll find the Borrowing and Lending thread, and hopefully someone who can help you out.

Thanks!