The open source projects I see on their site aren't under AGPL, they're not even GPL, they're BSD. What's the issue with using it? Also, unless they're followi

The open source projects I see on their site aren't under AGPL, they're not even GPL, they're BSD. What's the issue with using it? Also, unless they're following a different credo than the rest of the open source world, why are they complaining about "stealing" UI? I thought people in Open Source didn't believe in software patents?