Hi Jo-An,
Ah, anonymous uploads :) I wouldn’t dare to touch that.
If there is a plugin that allows that, let me know which one it is. I can always look into adding a media file picker for the visual formatting (BBcode) so there can be some integration.
For anonymous uploading, there are specific services for that which can make that usefull, that is why there is BBcode, it is used a lot in forums.