Currently a user can delete his/her own posts and there is no separate permission for that. This can cause difficulties for example in support situations where the author deletes the original question and thus makes the whole conversation useless. This results in the loss for any other user with a similar problem.
There are two ways this could be implemented:
- Introduce a permission "Can delete own posts" that can be set to certain groups
- Introduce "Allow deleting own posts" which can be set to "Until next reply" "For 10 minutes" "Indefinitely" like other similar permissions (this might be more consistent with how Flarum works currently)