Commenting only

Hi Multicollab I am cancelling because I would like to be able for my team to comment **without them having the ability to edit posts. ** I am the main writer and administartor of a website and blog, and I would like my team to help with feedback and proof readning. Many of them do not have any experience with wordpress of with writing. So I don't want to risk that they modify content by accident. Therefore a comment only mode, like there is in Google Docs would be great. Suggestions only mode would also be excellent. I might get back to you as your product evolves. Kind regards / Christian