OK maybe they were not that bad. But it was amazing the sort of things students though were acceptable messages. Messages that talked down to people, called them names, used generally impolite language, and just plain weird stuff. I think this is because, in part at least, they thought no one would ever read the messages but them and me (while grading.) Perhaps they would show it to friends and they wanted to have some fun. This is the sort of thing I often commented on in reviews of programs though. Why? Because I wanted to instill good habits and good practice.
Teachers can not reasonably demand full professional quality work (though it is a nice goal) but I think that teachers have to take assignments seriously and insist that students do as well. This is especially true for programs that have to interact with users. Many computer programs are just too hard and too unfriendly for people to use. Getting students thinking about fixing that problem early is the least we can do.
BTW look through the archives of Office Offline some time. If you can’t find a cartoon to hang on your wall or door I’d be surprised.