Because it is a terrible plan if you're both Gs. It's possible you both are, and made a mistake in posting at the same time. Someone on the G thread says "Okay, Alen's a confirmed C, people will generally believe what he thinks, so someone vote Kate". And two do it at the same time.
Otherwise, Gs might be thinking "Wait for someone else to, and then second them" and you're lying about having been posting at the same time.
Or, one of you is the first one in trying to get me gone.