i think it's an excellent idea, i worked (many years ago!) with disabled people,all different kinds of disabilities ranging from deaf, visionally impaired,etc,some in wheelchairs, and noticed that they all helped each other with things like mrbumblebee has said, sometimes "able-bodied" people don't realise the obstacles that disabled people have to face, (especially if you're blind,partially sighted or in a chair) and it does help to discuss it with people who have been there in the same situation,
i hope ED will take this one on board.