I think it's rather obvious that AWK was a replicant. I mean, first off, he had no real emotions. He had to fake emotions using smiley faces in each post. Secondly, judging by the time of his posts, and the fact that he's ALWAYS here (except when he's not, but even then, he's probably just socking or something), he obviously doesn't sleep.

How many real people do you know who don't sleep or have any emotion?

On a lighter note, isn't an Astin Martin a drink? No, wait, that's an Astin Martini. And there's one sitting in my office right now.