I would like to be possible to disable commenting on a page. Some pages (like main pages or portal pages) on a site don't need comments. It isn't appropriate. Not only can you not disable commenting on a page (like through a simple checkbox on the edit page), but even if you disable editing of a page entirely, that still won't prevent commenting.
Please improve this situation. Best of all would be a simple checkbox: [ ] Users can comment on this page. I would also be ok with tying it to page permissions.