Wikipedia is open for anyone to edit or modify the page. Of course Wikipedia’s administrators are there to protect certain pages for direct editing in case they find that the page is subjected to regular vandalism. If you find Wikipedia pages that need editing, you first have to create an account and register yourself for that. This way you can not only edit pages but also create your own page and upload content and that too without your IP address being visible to the public. Have you tried editing a Wikipedia page?