Secondly, to answer your question, curiosity, pure and simple in my case, no malice intended.
A registered URL can sometimes be the first hint of what an organisation is up, but thats fine, it's not like giving away a trade secret, infact it can easily play into a companies favour, say for example Microsoft registered the domain,
www.Milkshakes.co.uk can you imagine the hype mileage you would get out of that.
We need to respect that we don't want to give things away before they are ready, so if you stumble on a URL registered to Microsoft best keep it to yourself, but watch it till something appears! ... then you will be one of the first to tell everybody about