This comes up on a regular basis in large courses here at UCF.
There is a course with 2 students with the same name. One of the students needs to take an exam at a different time than other students so the instructor wants to use the "Assign To" option in the assignment settings.
There is a student in the course with the same name and there is no way to differentiate between the 2 students. In the meantime, both students have been added to the "Assign To" field but only one of them should be there.
We'd like to request that a unique identifier be used in these fields.
These are related issues which would also be resolved if this was added: