>>69727441Deductive reasoning. It was not a new IP, so it was either
>Michiposter>Makinist (You)>ButtercookieSince it was replying to the Michiposter, it left only Makinist or the Buttercookie. The most likely candidate was the Makinist due to history of posting, as the Buttercookie would be less likely to be asked to be raped by the Michiposter.
