The fact is, the phrase is supposed to make sense. Up until about 15 years ago it did, but then somebody forgot the negator (n't), and everyone else followed him off the same cliff.
Think about it, idioms such as "don't butt in" make sense! When your in a crowded room, it's how some people back up! If your a night owl, you work best like an owl does, at night! Sure, I'll quit correcting logic errors...over my dead body!
<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>