I uploaded two images to imgur in the course of composing a question here. While _studying_ the screenshots, I discovered the answer to my question, but the images remain. Now that I don't need them, will they [automatically expire after three months](http://meta.stackoverflow.com/questions/26365/is-there-a-way-to-attach-images-to-a-question/26367#26367)? Or is the [new imgur pro account](http://blog.stackoverflow.com/2010/08/new-image-upload-support/) going to keep around unlinked-images indefinitely?

I feel so wasteful.