Their rules, (I believe unintentionally) give iron-fisted fiefdom rulers a toolbox of justifications to control and alienate under the guise of protecting the quality of the site data. I honestly don’t even think most of the control freak mods could objectively judge the propriety of their actions because it was all encouraged by the rules. (And I do not think this was universal among the mods, but it was certainly endemic to the site culture.) Well, the outcome was predictable.
Before I worked as a web developer, I was a formally educated and credentialed professional in a non-computer-related field with a pretty high barrier to professional practice, but a lot of passionate hobbyists. When I found the related low-ish volume SE, I excitedly poured hours into writing authoritative, well-informed, well-cited, thoughtfully worded, and concise but layperson-friendly answers. I also provided encouraging and positive, but usefully critical feedback to people that missed the mark. I knew how negative the format could be after using SO for years, so I bent over backwards to avoid discouraging newcomers with a punitive or imperious tone. People seemed to find my contributions useful because I became the top contributor in something like two weeks, and still regularly get points for things I wrote over a decade ago.
Some mod— a hobbyist with far less knowledge and experience, but a serious case of Dunning-Krueger— probably got annoyed that I was getting more votes than them because one day they started nitpicking the hell out of every goddamned word I wrote. I pretty quickly got fed up, and stopped participating about a month after I started.
::slow clap:: Well they might not have protected the utility or integrity of their knowledge base, but they sure protected the integrity of a bunch of people’s egos. That’s something, right?!