Requiring people to share is much worse than not sharing at all. The main
reason "anti-leeching" features were abandoned years ago is because it would
have inevitably resulted in thousands of people "sharing" millions of junk files just
to avoid being arbitrarily cut off by selfish people.

Let people share what they want, when they want, or not at all if they
choose. That freedom has resulted in what we have today, the strongest P2P
network with the greatest variety of files.