Remus Lupin

From what I dimly recall of my own school days, I imagine any lists of conduct the Ministry feel should be avoided will be immediately seized upon as a checklist of how to have fun.

I think you're right, the intention was definitely to obscure the facts, or lack of them. There was next to no information on the children themselves, who they were or where they came from. Either they don't know, or they don't want to tell.