The best defense against piracy is low prices.
Also in the software world if you want product support you have to buy the product.
The number of countries and governments in the world and the sheer volume of data passing through the internet guarantees that piracy is here to stay.
If you had a product for sale on the net and you wanted to make sure no one was pirating it the amount of time it would take to police the world would insure that you never had time for anything else.
Life's too short.
Live and let live.

An eye for an eye makes the whole world blind.