How about I look at some of those cases? Especially if it's relatively recent, I can take a look. Leave me a message here, or at my email address (see my HN info) , or on https://en.wikipedia.org/wiki/User_talk:Kim_Bruning
I'm not very active anymore, but I'll check in the next couple of days and see what I can do. Really to be able to help I generally need links to revisions, but if you have a username, a page, and a reasonably short time frame (a concrete date) I might be able to figure out the relevant revisions from there.
To onlookers: When I investigate cases like this, there's often a "catch." Sometimes contributors really did break Wikipedia policies — and just don’t mention that part when telling their side of the story.
Now I'm certainly not saying every case is like that, so I will look, and if you don't get what the issue was, I'll try to explain. In some cases if it was recent and it somehow wasn't fair, I might even be able to'fix' it within the bounds of Wikipedia policy.
Please note that, although there are scores of anecdotes in this thread, precisely none of them link to any examples or give enough details to find them. It’s always like this with Wikipedia detractors; I don’t know why, but it is. Complaints and horror stories galore, but nobody will link to any of it, preventing anybody from investigating what actually happened.
Raising the issues externally comes off as petty, because the “evidence” consists of 50+ pages of inane bickering on talk pages, community post , etc with no clear narrative or verdict. It’s a unique community that leans heavily on hyper-bureaucratic and bespoke debates.
I could share > 5 severe cases that required weeks of effort to “resolve” . It would require nearly as much effort for anyone to draw conclusions from.
There are some index pages of some of the more notable conflicts & debates. If you can indicate that digging that up would be worth my time to help you understand more, I may be willing to help you out.
There's no such policy , but it's abused as a way to censor criticism over behavior, which itself is a policy (RUCD)
There were a couple instances where user conduct concerns were raised on their talk page (in accordance with RUCD), and that user used USERTALKSTOP to censor the concerns. The outcome is that me and the other users who were raising concerns received a temporary ban (one permanent), instead of the concerns themselves being attended to and addressed.
Worse than the ban was the hours and hours of inane dialog on admin pages, defending your edit history, account history, intentions, etc. And the UI is clumsier and noisier than the worst 1990s web BBs
You can see how a seemingly benign non-policy can be abused to censor even well-intended volunteers.