No surprise, but...
Here's my experience:
I've been trying for several years to have a biography published on Wikipedia of someone who had a very long and influential career in video gaming, worked for almost every big name you can think of, has a very important patent and is the engineering leader of many of the most popular games you ever heard of in the past. You know, the person who makes the games actually work.
And that's the short list of his achievements. He is also very well known and respected inside the industry.
Yet it was rejected every time I tried to submit it with vague reasons given no matter how many times I rewrote it and scrupulously followed their guidelines.
He finally had to resort to paying someone to get it published.
I have no love for Wikipedia.