Since its inception, Butterfly Labs has been the center of suspicion and gossip in the Bitcoin community. The company often offered preorders on what they advertised as state of the art Bitcoin mining rigs, accepting payment for the preorders, and then taking long periods of time to ship out the rigs. By the time customers got their machines, the hashing rate had increased to a point where the machines could no longer efficiently mine Bitcoindespite being advertised as having great ROIs.
http://www.coinfinance.com/news/butterfly-labs-wants-approval-to-re-open-its-doors