An edit that made a response worse should have knocked the mod down so that they were unable to mod any more. The quality of the edit should have been determined by the original author. "Did this edit make your question better?"
Moderators should have been ranked and scored based on their ability to help and welcome new users. It should have been very costly for them to make a new users feel unwelcome.
Literally everyone on the site is permitted to propose an edit, and everyone with at least 2000 reputation can make unilateral edits. The proposals are approved by a 2 out of 3 majority of random unilateral-edit-privileged users. None of this is considered "moderation" and is not done by "mods". Of millions of Stack Overflow accounts, only a few dozen have ever actually been moderators, and they do a tiny share of curation. Their main job is responding to flags.
> It should have been very costly for them to make a new users feel unwelcome.
The overwhelming majority of people who came to the site wanted the site to be something that it was fundamentally not trying to be, and often something it was fundamentally trying not to be. It was correct to make such users "feel unwelcome", because experience has shown that they typically cannot be reasoned with or explained to. The statistics make it clear that most of them never had any intention of trying to join a community (or, say, ask another question after the one that motivated account creation) in the first place.
Message received I guess, seeing as how the overwhelming majority left.
The thing that killed it was the thing that made it prominent.
According to a blogpost i can't find any more about "how to speedrun social media" or similar, it's basically impossible to pivot a community once established given the levers of voting mechanics and mod policy. (I distinguish between Facebook's and Reddit's enshittification and a pivot.)
IOW, the seed of a community property's growth is also the seed of its decline. Analagously, the charming village is attractive to new residents because the existing residents resist the changes that new residents embody.
Very broadly and by no means universally: techies don't like lusers, because lusers don't put effort into understanding, they just want turnkey answers. This is totally counter to the archetypal techie value system.
SO optimised for grumpy misanthropes over bumbling newbies, which, in tech, is roughly congruent with optimising for people with knowledge to share over people who want their homework done for them.
The questions are not the scarce resource - you can browse Microsoft Community Answers to verify that. The answers there are correspondingly useless, which is why "blindly copy from SO" is a meme and "blindly copy from Microsoft Answers" is not.
Here ITT, and more generally on HN, comments are excoriating about the cost of being offputting to new users. Those commenters should recognise that it's not a pure cost, it's a tradeoff, and the upside has been a treasure for a decade. A million projects completed by people who found quality answers, mostly by searching for existing questions.
That resource is still relevant for stacks other than the latest web framework hotness, and i personally still get benefit from it in my archaic hobby of learning to code.
That resource is not still directly relevant for coders deeply plugged into AI, but it did train that AI.
It's one of the most successful endeavours on the web and a towering community achievement. It is a superficially a shame that people experienced gatekeeping, but if "gatekeeper" has only negative connotations in your lexicon, then I advise you to compromise your principles and firewall your network.
(this kind of thing IMO really added to the utterly arcane set of rules and conventions that makes it feel so inaccessible)
It is good that leaving comments is hard. First off, because it was learned repeatedly, the hard way, that removing that barrier leads to ungodly amounts of literal spam. Second because even insightful comments detract from the main intended flow of using the site, which is: you find a question from a search engine, read the question and verify that it reflects what you're trying to figure out, then scroll down to the answers and learn something. The entire point is to not be a discussion forum (which is also why comments were not threaded for most of the the site's life). In fact, the site came into existence specifically because of frustration with what ends up happening on a discussion forum where people can discuss endlessly.