Earlier quoted context omitted.
> Now if you turn around and use the author for patent infringement for something else, you lose the patent grant that came with the software, and you are back to a normal plain old BSD license. > The BSD + Patents license is strictly better than the regular BSD/MIT licenses. You lose no rights, you may gain some patent protection. Could you provide a citation backing up your claims? if you read the patent grant for…
You left out the definition of "Necessary Claims": > > A "Necessary Claim" is a claim of a patent owned by Facebook that is necessarily infringed by the Software standing alone.
I understand the followup question other people have now: What are those patents?