If we’re to keep the narrative coherent (I say, being sum1’s fuccin english teacher), we gotta assume the original poster was a girl–which catches me completely by surprise–and now the younger sister, the owner of the computer, is posting. Which suggests she checked the history on her browser on her computer, which is where older sister registered the account and posted. And it turns out maybe she’s a brat after all.
Accounts compromised guess we’ll have to ban you. If that’s not a good enough reason I cite your inability to acknowledge the existence of spell checking as grounds for banning.