How can anyone argue otherwise ;)

Well, you didn't specify that you were talking about Earth's sky. The fact that sky is not a proper noun implies it is a generic term which refers to the upper atmospheric regions of any planet which has an atmosphere.

It's an absolute joke the way he abuses the system. And for some reason Andy bans everybody except him, even though he blatantly lies, cheats and uses the site as a neo-fascist propaganda tool for the Israeli Reich.

My suspicion is that bronto has something to do with the advertising on the site, and that he's probably some kind of political shill. I know the Israeli Foreign Ministry were recruiting internet shills a couple of years ago, because a few kind citizens were helpful enough to BCC me on the emails.