I heard there was an arguement about it between a jew and a muslim on a different forum. The jew said iut wasn't fair that only Muslims where allowed in. But then if everyone was allowed in they would clutter up the place with cameras. Makkah feels so clean with only muslims
And who is he to say that it's 'unfair' when it's the commandments of Allah given to our Prophet?
BTW that sign is total awesomness