No worries Chris, its not that I'm completely against people directly copying my code without an understanding of everything it does, but if the code has been directly copied, I would expect a mark against it to say that it has, eg..
(somecode) ;; Lee Mac
As you can imagine, I don't particularly like people straight copy/pasting code and then having the audacity to plaster their copyright notices all over it...
I'm sure most of the code used regularly does look similar, and this is unavoidable, but all the same, its quite easy to tell if a block of code has been the result of copy/paste, and that which the author has written for themselves.