Thats fine, the only reason i would like a clean up is that we have faculty who add around 20 students per class every semester . Over a couple of years the number of residual account become huge..
What is needed is to purge all the dependencies in the stats records, (or regenerate then for long term storage that does not require the IDs), and then the user entries can be deleted. Not sure when that is going to happen though ... sorry about that. Lbs