I think that may be a bit premature. According to others, who have been using this program from the early days; HR has taken at least one other sabbatical. Call me optimistic... but I will not give up hope until he says he is throwing in the hat. He has been at least logging in to ECF, every week or two, for the last couple of months. The most recent was 2/15/18.
I could see where the constant barrage of requests can get to a guy. I am hoping he just needed to step away for a while.

I too, want to remain optimistic that our Savior will return.

As I think you also said, if nothing else than to open source this program. It would be an immensely crying shame to see this amazing program languish into abandoned-ware oblivion. Although I hope you're not just referring to
me saying that he might have been on sabbaticals before - as I have disabling memory issues. Right now, it's just a remnant of a distant fuzzy hazy thought of when I first started with this calc.

And I think you've been here longer than me.
I'm always glad when you say he has been logging in, and with you saying it's been every week or two for the last couple month --- might be a hopeful sign.
The program is already quite complete, but if there was one thing, it would be to make it faster with large juice files... My circa 2012 AMD 4-core laptop is getting pretty slow with my large juice file.. It seems to freeze the whole computer for several seconds when it now 'pauses' to do its full recipe-ingredient redraws. I've off-loaded as much as I can to a couple different juice files, but it seems as if it doesn't really help much - with a ~6MB juice file. Have other people encountered this - and hopefully found a solution?
Although, since my ship is getting ready to dock -
hopefully it won't be a problem soon, when I get my new computer: a liquid-cooled AMD ThreadRipper 16/32-core, 128GB memory, two Samsung 960 Pro m.2 nvme drives, a 32-inch 4k AdobeRGB-gamut 10-bit HDR monitor with a really beefy video card - and then some..

That will beat this aging 17-in laptop, by just an itty-bitty
tad, I think - just possibly.
Or, if you really find value in HR's software, and appreciate what he has done to date; you can use the PayPal link in the Help tab, and show him financially. Forego that next atty, or mod, and send
him the money instead. I don't know about you; but
I use JC way more than 80% of my hardware purchases. And finding a couple of extra Jacksons in my wallet always gave me a little extra motivation.

I've been considering a pretty sizeable donation, since this calc is running just about 95% of the time here. But are we sure that it's going right to
him - and not someone that is doppelganger-ing him?

(Although that would be,
in addition to, some attys and mods and many flavors.

)