Do you have a receipt for that receipt?

Interesting comment from Kat Kinsman:

Hmm. I can go two ways here. I can think of plenty of receipts I care enough about to make, and have blogged about, but have not made an effort to make my own. I enjoy reading similar posts from folks I trust-- how was that thing in Wednesday's paper? Well X cooked it and says Y. Where problems arise, I think, is a) when someone appropriates a receipt, changes the proportion of thyme and majoram, and presents it as their own, w/o credit to the source. On the other hand, it's a problem when folks front like they are cooking a published receipt, then evaluate it based on their own halfassed substitutions. The Wed Chef is a prime example. On the other hand, the whole concept of receipts and authorship is complicated -- ask Chris Kimball or the Beastie Boys.