Report instances of removal of open source licence boilerplate from files
Occasionally, we see examples of students removing the open source boilerplate from their source code files. This is most usually because of a misunderstanding of how these licences work but is occasionally due to dislike of specific open source licences.
It would be good if the common errors system could warn students when they have done this, and point them to resources on the specific licences involved and what they ask of their users.