The user has published numerous books on SQL and Data Mining. Makes me think he is an expert who spends time curating caveats in this ecosystem. This is a great way to build value for the community and self. https://www.amazon.com/s?i=stripbooks&rh=p_27%3AGordon+S.+Li...

Would be interesting to see the overlap in answers. It may be that instead of closing as duplicates, he’s just answering them and his SO cred keeps folks from chasing duplicates.

As an aside, he was also a big reason why I stopped participating in the network as we had a few run-ins over nuances where his support was “I wrote a book.”

I believe it's this guy[1], so it's safe to assume his boss is on board with spending his time that way.

[1] http://data-miners.com/linoff.htm

Okay, but that site is quite dead and has been for a long time. The homepage has Flash on it, and the linked blogs haven't been updated in 5 years.

If you're answering 23 questions on SO per day, you don't have time to maintain a website. Especially that initial time sink of converting from a Flash based site.

If it's occupying his life so much that he hasn't updated the homepage for his technology consulting firm in 5 to 10 years, then he seriously hope he's retired because the alternative is really not good.

Why do you make the assumption that he does this on company time?

22.8 non-trivial answers per day. I'm pretty fast with SQL and no way I could do that, let alone 3000+ days in a row.

Even at 10 minutes per answer that is roughly 3.7 hours a day or 26 hours a week. That’s more than half of a full 40 hour work week or like 23% of your waking hours each day!

That’s a non trivial amount of time!

I'm willing to bet this guy is so good at his craft that he bangs out quality answers in less than 10 min per question. That'd actually be a fun side project: for a given SO user, compute their average time between each of their answers and the corresponding question.

You are assuming that he answers questions every day. He could easily be spending weekends on SO and some evenings. It doesn't mean he's using work time to do this.

He may be a database engineer on call in case of problems, but not busy doing anything. Some people on call are doing crosswords, watching youtube, posting on facebook. He's posting on stackoverflow !

Most popular question shows, he answered it on a Friday at 2pm. I bet he did answer on the clock.

He could be retired.

Is his employer satisfied with the results of his work? That's all that matters