Originally posted by Rogue Jedi
The Room of Requirement is a secret room within Hogwarts that only appears when a person is in great need of it. The room then transforms itself into whatever the witch or wizard needs it to be at that moment in time.So if the wizard needs the sword Aragorn used on the Army of the dead, it'll be there.
If the wizard needs a portkey to McDonalds, it'll be there.
See how that works?
And like I said pages ago, there is the reason for the crying, you want to give the wizards and only the wizards special rights; allowing them to bring whatever you like into the fight even if it was a weapon/gear not stipulated in the OP.
In short, you want an ace-in-the-hole for when you can't argue a wizard win in any given thread, which is most of the time.