There are many styles of cowebs out there and modes of using them. Without justification, this coweb is designed to support member creation of a coherent document and structure that reads like a informal but well designed website. A good example of this style is the Wikipedia project.
Keep in mind that this is a shared document. No one should stake special claim to a particular page and you should edit pages with the same respect you would like your pages edited with.
There are rare sections that are clearly 'owned' or looked after by one person. If you create a page with your name as the title you should expect other members to honor that space. Perhaps they will make a comment there, but they should mostly leave your page to your editing.