The fact that Energy Star rating stickers are not made using easy peel adhesive.
Every time we buy something with one stuck on the front, my wife tries to peel it off and we end up with one dogeared corner because the adhesive is ridiculously permanent for a marketing sticker. We sold our house last year with a 4 year old dishwasher complete with faded Energy Star sticker because we never could remove it and our last tumble dryer had the remnants of a ripped sticker on the front as well.