Since the autumn Minus doesn't allow the uplaod of non-media files. As they've said, their goal was "not to be file-hosting website, but a social photo-sharing service". This means now you can only uplaod photos/pictures, videos and music. No .zip's, .txt's, .exe's or etc. The ability to download all your files as a .zip was also removed, but you still have the access to all of your old files (even non-media).
To sum up: Minus became just a place to store/share your pictures, which is sad, because I considered it the best file hosting service.