Edit: BFL are not nominated 
Although BFL has scammed horribly I would argue that they have somewhat benefited the community. It has taught potential customers of miners the importance of not paying for preorders when the miners are not going to be shipped immediately (or in the very near future). It has caused miner manufacturers to put more skin in the game and as a result have produced higher quality products. That's a stupid argument. it's like saying bullies are great cause when they beat up and hurt a weak kid they're actually helping him become stronger. It makes no sense. Anyone out there who hurts people in any way whether it's emotionally, physically,financially, is not a good person ,no matter how many life lessons we may learn from them.
Seems like we could do without such lessons.
Yep, very expensive lesson indeed.