Greg and I have been good friends for many years, and talk frequently. He's fine, and everything is OK.
The main reason he has drifted away from "Internet Pipe Life" is simply repetition. He had a Net presence before the World Wide Web even existed, and has heard it all, and answered it all, many, many times.
He's one of those guys whose purpose in life is to learn new stuff and do new stuff. It's like an information-gathering form of OCD. It's relentless. He's a first rate musician, a pro-level software engineer, a pro-level chef, a pro-level photographer, an electronics engineer/designer, a wine expert, a trained race car driver, speaks several languages, writes professionally, and on and on. All in addition to blending pipe tobacco and having a family to look after.
Because forums like this one "roll over" their membership every few years, the same dozen questions come around again and again. Questions and discussions that are fresh to it, but stale to him. After thirty years, he finally stepped away from the social side pretty much entirely, and now only pops in when necessary for work-related reasons.
That's it. No drama, no muss, no fuss.
I hope that helps put this thread to bed.