It gets a bit ridiculous over longer time scales. Almost all of my SO activity was in early 2009, when I got up to about 12k reputation. I had another small burst in early 2010 that took me to 17k or so.
I've had basically zero activity since then, and am now at 56,725. So I've gained about 40k while doing absolutely nothing for 8 years, and am still ranked #1331 (top 0.34%) on the site overall.
I've only been a contributor on SO for the last 1.5 years or so (though a long-time lurker since almost the beginning) and can tell you that it's not that easy or outright impossible to reach that kind of figures nowadays. Not that I care that much about my SO rep but still. Folks would often not even respond to long answers, use throw-away accounts, and the quality of questions is depressingly low, like in "How would I go about (description of a multi-year web project)?" without even the slightest effort of basic research or checking already answered questions. And of course the frequent case where students want to crowd-source their homework (sometimes answered by others who want to quickly grow their rep).
Was it always like that, or is it a recent phenomemon with more Web freshman coming to the scene since around 2012?
And obscure, poorly formed duplicates don't yield much long term rewards. As it should be, but it still means that these numbers are out of reach. Except maybe if you manage to work in the hipster shop that only uses the new technologies before they become cool. Then you can go back to answering the basic questions.
I have always thought of reputation on SO as a measure of the total usefulness of your answers. When people find your reply useful, they upvote you. It's thus only natural that long-standing useful answers will keep gathering points, because people will continue to find those answers useful. When your answers are no longer useful (say due to technology change), your points too will stop growing.
> When your answers are no longer useful (say due to technology change), your points too will stop growing.
Ideally this is how it would go, but in reality it's more likely your outdated question will just continue to get points while misinforming new users by recommending older methods.
It does say quite near the start that Jon joined SO in 2008 and further on "In the near decade since then, Jon has answered over 34,000 questions, which works out to about 10 questions per day!" So I don't think he's just doing nothing and getting rep. I'm sure there is a bias, often people have a few good questions or answers that stand out and pull in the majority of their rep, like you mentioned about being idle for circa 1.5 years. However, if you read that post it seems Jon is still actively contributing.
I've long felt it would be worth trying some "diminishing returns" mechanics in SO. It might result in more attention given to the "long tail" of problems rather than people seeking "retirement investments."
It’s also used by finance-outsiders who want to look like they are finance-insiders, a bit like how people will casually write GOOG and AMZN instead of Google and Amazon.
The answers given by the model mentioned at bottom don't even make any sense. I wonder if ML will even be useful at harnessing and redistributing knowledge.
From
https://meta.stackexchange.com/questions/9134/jon-skeet-fact...
I like his answer about Chinese time zones
https://stackoverflow.com/questions/6841333/why-is-subtracti...