The City of Austin decided to crowdsource a new name for its Solid Waste Services Department.
It received plenty of ideas and votes, however few were meaningful or useful - though a number are quite funny.
However don't take this as a lesson that crowdsourcing doesn't work.
Use Austin's experience as an example that crowdsourcing, as a strategy, must be applied in a considered and appropriate manner. Where possible the goals should be specific, meaningful and valuable to the community.
(thanks for the link James!)