One of the nice things about Unix is it is flexible; meaning you can easily change it to fit your needs. This brought with it a lot of innovation, because innovators often need weird configurations. Many linux distributions have the feature of allowing you to create fake users whose shells are commands for linux to run. However this is difficult to do because the motd won't go away unless you either turn it off for everyone, or add a .hushlogin file to the user's home directory (fake users shouldn't need directories).

wget has a progress bar yet cp and mv do not. This makes the terminal appear to not be doing anything and may irk new users. A progress bar of some kind would be handy to show progress of the task (especially for LARGE copies)

Just like there is auto completion of files or executables, there should be a modifier to check for auto completion of history of previously called commands

I recommend CTRL + TAB.