2014-04-21 19:37 GMT+02:00 Eric H. Christensen <sparks@fedoraproject.org>:
And how are these contributors going to contribute to their proprietary solutions that we now provide for them?

They aren't; isn't that a benefit for the open solutions?
 
 How do we support something that is simply provided to us as a binary and has no upstream bug tracking or support (outside of a support contract)?

We don't; why would we be required to?
 
How are these users going to react when all the software they know and love (that we provide) breaks due to no fault of our own?

Blame the provide of the software, naturally.
 
Are we going to hold back bug or security fix because it breaks a proprietary program but fixes it for everything else?

No, we should instead improve our technology so that this doesn't need to happen.  This is a technically solved problem at the very least since Windows 95, i.e for about 20 years; we have only not solved it because it's less work to say "proprietary software is bad, go use Windows"—but then we shouldn't be surprised if users do.
     Mirek