I strongly considered leaving them .... there are two issues I'm facing. First, it annoys me to have many other bike brands stickers in the mix ...Trek, Klein, Bon etc. Second, I've got a mix of new and very nice bits to build with and they may seem out of place.
The first is what really gets me ..... he just stuck everything on, even a sticker claiming that it's 6061 alloy. Perhaps I could selectively remove the offenders and replace with something else?