In earlier versions of the Microblogging add-on, the permission to post or answer was directly tied to the permission to add pages to the respective space. Beginning with version 2.5, as an admin you now can select, which space permission you want the microblogging to be tied to:
- Permission to add pages to the respective space (default)
- Permission to add comments in the respective space
- Permission to add blog posts to the respective space
The setting you choose here will apply to all spaces within your Confluence instance.