WARNING: May contain opinions
Let me invite you to http://99online.us , the most open, yet richest US Occupy Wall Street national content production site. Something for everyone. Anonymous may post essays and set meta tags, so Google, etc. find their essays; and they may comment. Anyone who wants to be a major content producer has near-admin right and can make many, many, kinds of productions. Explore:
http://mynichecomputing.org/drupal6/content/access-and-abilities-us... Register (aka "Create an account") for a lot of access and a lot of capabilities.