FWIW, Wikipedia also has this problem. Just spend half an hour going through some page histories and browsing some user pages, you'll find feuds and infighting all over the place. People with a profile saying "I stopped contributing because user XYZ essentially bullied me", yadda yadda.
One of the things in particular I felt that there should be more of a presence of (because it was basically nonexistent at the time) and I had some good knowledge of, was for Flash animations and games that had literally tens of millions of views and were practically pop culture for some of them.
But because there wasn't a dead paper news article I could easily cite, that was enough for it to be 'not notable' and eligible for long and stupid debates on whether or not there should be an article about it on this virtual Wikipedia that doesn't have a size limitation.
So stupid. Lost interest pretty quickly after that (I had contributed a few dozen minor edits before I started trying to submit those pages).
Now, of course, many years later, there's a whole bunch of them included on Wikipedia: https://en.wikipedia.org/wiki/Category:Flash_games But at the time the editors kept arguing to get them killed.
I also notice that a lot of the references that are included on these pages were ones that would be consider not-notable back then, because they are online web articles. Those weren't primary source enough for them at the time.
Well, that failed spectacularly. The Stack Exchange sites are some of the most hostile, caustic places on the Internet, surpassed on that axis by only a small handful I'm aware of.
Jerks found other ways to be jerks?
basically after sub-forums like bicycle, gardening etc which didn't fit at all under the programming forum, they opened up for randoms moderators. But the jerks started to abuse it to create a reddit-like web of overlapping forums. in 2018(?) you could not post anything without a question being closed with "offtopic! to ask about this specific setting on android phones with a blue or green protective case you must do so on xyz.stackoverflow.com. closed."
So of course anti-social nutcases dominate these spaces. That’s how these spaces are structured.
It would be very easy for websites to weight upvotes so that one from someone who seldom uses them weighs more.
Changes were clearly necessary because SO became too large. So, I'm not sure there was an alternative besides staying small. (Maybe that's the answer.)
I didn't quite find the quote mentioned by GP but for stack overflow itself, an explicit design goal is to minimize discussions and make the site focus on Q&A, since the kind of argumentative jerks mentioned by GP tend to be involved in long discussions. I quote from Jeff Atwood:
> At Stack Exchange, one of the tricky things we learned about Q&A is that if your goal is to have an excellent signal to noise ratio, you must suppress discussion. Stack Exchange only supports the absolute minimum amount of discussion necessary to produce great questions and great answers. That's why answers get constantly re-ordered by votes, that's why comments have limited formatting and length and only a few display, and so forth. Almost every design decision we made was informed by our desire to push discussion down, to inhibit it in every way we could. Spare us the long-winded diatribe, just answer the damn question already.
Why at least a year after? I also remember the speaker relating a conversation he had with someone from whom it seems like he was asking for money: maybe a VC? The VC told the speaker, "I sat on a plane next to somebody who told me he doesn't answer anything on stackoverflow any more because all the questions are answered too quickly." And the speaker responded, "So wait. You talked to a random person on a plane. This person had heard of my website. And his main complaint was that questions were answered too quickly?"
Wikipedia says SO did get VC funding in 2010, so that sort of matches; and quote from sibling comment is along the same lines. So I don't think I'm imagining things, but I also don't think I'm going to be able to give much more information. :-)