I'm not sure what the value of shaming people's hobbies is. 3 hours a day is easy if it's your primary hobby, and likely double/triple that on weekends.

I have noticed this trend too. I don't know if I'm simply too smooth-brained for `jj` or what, but I forced myself to use it for a month to give it a fair shake and simply couldn't grok it. I gave up and went back to rawdogging git. So there are at least some of us out there.