I just read a conversation on Facebook about this, want to know how GAF feels about this. I want to keep this as open ended as possible, so the question is basically what's in the title - obviously, cultures learn from each other, and they are constantly changing - when do culture's appropriate other cultures? Where is the line drawn? Can you give examples?
If you are creative and you accept any line to be draw between what you can and cannot say, you are a failure.