Other people have other goals, and sometimes the BSD style licenses are better for those goals. I personally tend to prefer the GPL, but that really doesn't mean that the GPL is any way inherently superior - it depends on what you want the license to do.
Linus TorvaldsI don't doubt at all that virtualization is useful in some areas. What I doubt rather strongly is that it will ever have the kind of impact that the people involved in virtualization want it to have.
Linus TorvaldsI'd much rather have 15 people arguing about something than 15 people splitting into two camps, each side convinced it's right and not talking to the other.
Linus TorvaldsIn science, the whole system builds on people looking at other people's results and building on top of them. In witchcraft, somebody had a small secret and guarded it - but never allowed others to really understand it and build on it. Traditional software is like witchcraft. In history, witchcraft just died out. The same will happen in software. When problems get serious enough, you can't have one person or one company guarding their secrets. You have to have everybody share in the knowledge.
Linus Torvalds