Ken:
You are choosing to take care of the most important thing of all: your family.
It is my hope you can use this time to rest and rejuvenate. If it is still in your future to come back and work on this fine piece of software, we will all certainly continue to benefit from your love of and dedication to our shared hobby. If you choose to do something else, I want to wish you all the best with whatever you decide to do.
As I get older I've come to learn that there will always be those who criticize, perhaps out of jealousy of another's accomplishments, perhaps out of a false sense of entitlement, or perhaps out of some unknown personal issue that causes them to simply lash out. There's absolutely nothing we can do to control this. I hope that you can use this time you are taking as a gift to yourself to put things in clearer perspective and shake off the criticism and belittlement. It certainly appears to me that the vast majority of folks who use SGP appreciate your hard work and attention to fine detail.
All the best to you and your family!
Best Regards,
Ben