Why not? It's also easier for management to find the users. It's a lot easier to find people by their Habbo name.
Well departments don't have a choice. It's a rule set and all departments know if they need their Habbo names or not to be set as the forum name. I'm pretty sure when new staff come along they get told about the name rule and then the name changes are easily done. It's not silly when it's been happening for so long and it works just fine. DJ's require to be on Habbo so it makes sense for their Habbo names to be their forum names like any other Habbo based department.
Help Desk is a community department, the room is on Habbo. Rare Values, it may change for that.

