i suggest to have a re-use of attachment files
you upload an image attachment on thread named "my beautiful wife"
so its now ok...
now you realize, you also need to post the same picture in another thread named "sexy wife".
instead of reuploading the same file which consumes space, why not reuse it instead?
currently if you just copy "image file url" and use img tag
it will only show when your login, but for unregistered it will
not show the thumbnail.
i hope image reuse is avaialble