How not to start a community website

Maybe I'm being a bit dumb... but I don't see the point of registering here:

http://www.edusource.co.za/dokuwiki/doku.php

"How to use the site

Registration
Registration is Mandatory Visitor : Create a logon for yourself and browse through the site. Contributor :You can edit existing categories only (this is to prevent duplication and to ensure that the layout for certain main categories remains the same) Creator :You can create additional categories, edit and delete (this membership is at the discretion of Eduwiki)

Note that while registration and use of this site is currently free, it is the intention to convert this to a subscription service to protect and finance the growth and maintenance of the site.