Thanks for the response @Joris. It feels, however, that these permissions should be tied. If I can upload and update a file, I should also have permissions to remove it (the files that I "own").

I also have to reiterate that I was surprised that dragging and dropping a page beneath another (with the intent of making them nested) not only didn't work, but created a link of a page back to itself as an attachment without asking if that was what I wanted to do. But that sounds like a different bug to file.

@Bri Gipson I think you simply don't have the permission to do so then. The feature is definitely in Confluence since 2016, whether to use/allow it or not is up to your administrator now

I don't see how this is resolved. While thinking that I could drag-and-drop a page beneath another one (silly me!) Confluence decided to make that page's link an attachment to its own page. It effectively created a .url file attachment to my page. I tried to remove it and there was no feature or function or button or capability to do so. All I could do is "edit", which didn't work. I resorted to downloading the .url file, editing it in Sublime and re-uploading it with comments warning others of Confluence's behavior. All I want to do is delete an attachment that Confluence has labeled me as creating (which I did not).

We are pleased to announce that this feature has now been released in Confluence 5.10. Thank you for your all your input into this suggestion.
Space permission now include a 'Delete Own' permission which allows users to delete Attachments which they have created.

+1

+1
A file can be accidentally dragged into a page on confluence and there is no way to delete it.

Any update on this one?

yes, please add this feature

please add this option

Yes, please make this change.