There is a great story on Torrentfreak about how internet piracy has caused a downturn in business for an internet pirate. A sob story which leads to a salutory lesson at the end (and the danger of doing nothing in the face of change applies to all businesses):
P2P is a very powerful machine and although Tony could see that his operation was feeling its effects, he admits that he sat back and did nothing about it and consequently, his business has paid the ultimate price.
It is interesting how many people in the comments think profiting off piracy is the lowest of the low but piracy for personal enjoyment is not frowned upon.