I will give some more info on what I saw at wikipedia, which arguable is common knowledge.
After I translated pages, I noticed people coming in to make small edits. I don’t mind those, but is baffled that people seem to be making meaningless changes all the time. Not to mention I am pretty sure I am more knowledgeable on said subjects than those “editors”.
I later realized that the number of edits and the number of edited pages count towards some arbitrary numbers which people can use to claim and move up the ladder of admin rights. It all made sense on why there are so many minimal edits performed by individuals. They are looking for low hanging fruit.
It soured my feelings toward wikipedia. I thought of it as a good volunteer project. Turns out some people play it as a numbers game. And they have enormous influence on the site.
Those people than use their power to suppress whatever they don’t like to see on wikipedia, similar to what OP posted.
By the way, to understand how absurd wikipedia’s system is, please take a look at the following news:
Why Emily St John Mandel asked for help getting divorced on Wikipedia