Linking remote images instead of downloading them
When a status that contains images is got from a remote server GNUsocial downloads the image into the local server and then stores it forever. This means more and more GigaBytes just of images that at the end (usually in "big" servers) have to be removed manually including the images uploaded by the local users of that server because all the images are stored together without a way to differentiate them.
The main idea would be show the user a link to the image contained in the remote server or maybe we can explore another ways like temporary cache of images or whatever, but this is something that has to be fixed as soon as possible.