Because the more inclusionary wikipedia is, the less rare and valuable it is to be a wikipedia contributor and/or editor.
Imagine if everyone was allowed to write a factual, well-formed, properly cited article ?
Imagine if everyone was allowed to write a factual, well-formed, properly cited article ?
Your sarcasm is really quite hurtful.
The idea of Wikipedia is to allow anyone to write articles. But in practice a newcomer has to have a lot of grit to keep content on the site because of the social structures that effectively make certain topics off-limits to newcomers. I like Wikipedia a lot but I have better things to do with my life than go to ArbCom when someone is effectively claiming ownership of a page.
Changing subjects:
How does one change the username their HN posts are made by, after the fact ? That's a neat trick ...