Maybe somebody takes some time to make it right, although I don't know how Wiki decides what version is well intended and which is not.
I'm not an expert but this is what I have faced with Wikipedia-
There's one article on bitcoin in my local language (Bengali). The article was good enough of course without any doubt but good for a pro. For newbies, I would say it was hard as hell. I tried to edit the article with some good references. For unknown reason, the original author didn’t approve my edition. It seems that in wikipedia, topic starter has the power of attorney. He can deny any edition if he thinks it's not good. This is what I have observed but as I said I'm not 100% sure if there's something else too.