I found out too, that if you delete a picture from your file manager, it deletes it from your posts. Is that the way it is supposed to work? If so, as time goes on and you post more pictures, will your file manager get too full to upload any more pictures? Thus, preventing you from posting new pictures?
Admin Edit: If anyone feels they need more space contact New2Brass, Lupus Dei, Moneawon and they will be able to move pictures to free up you space.
Please do not delete pictures as that may effect older posts which may be useful to others.