The biggest OMG when you look at Drupal 7's db at first is: "why there are so many tables?". There were lots of debates regarding Drupal db schema, but if backdrop's target is small to mid projects and better performance, there should be a movement towards getting rid of current "table per field" approach.
There can be something similar to Drupal 6 CCK approach: table per bundle and if field is multivalued it lives in a separate table. There was a project called "PBS" (https://drupal.org/project/pbs) that tried to accomplish that goal but it didn't work out for some reasons.
So what do you things about such a feature?
Recent comments
Oh thanx ! I had an "old" text format that I had disabled. I re-enabled this format in the field body with the permissions and the field comes back for editing.
Problem of access to the body field with a simple post
See https://github.com/backdrop/backdrop-issues/issues/7148
Problem of access to the body field with a simple post
I used the theme gin for admin. Perhaps, it's the problem ? I have a color border when i selected the images and of course i used the "ctrl" key.
Small problem with multi import files images.