But right now what you wrote it is exactly the problem from an usability point of view. Currently an second user that want to create a blog posts can’t even see the first “draft” blog post and could possible use the same name because of that.
When viewing drafts would be tied to the edit permission, that would not be the case as each user that could create posts, would have the chance to see other drafts. Also that way, working together on blog posts would be easily possible and the usability of blogs would be the same like on every XWiki page.
Even when manually (or automatically) adding view rights to a group, only the creator can normally see the unpublished post on the Blog-Page and publish it from there via the globe-symbol. All other users first need to activate hidden pages in order to see the hidden post. Now other users need to edit that and can only then select publishing.
Is there any configuration possible to easily allow multiple users to work together on blog posts without creating much effort for the users?