Fair enough. Allow me to rephrase, then, since the choice of refutation is enough to support my argument and I don't need to bring the validity of the accusatio

Fair enough. Allow me to rephrase, then, since the choice of refutation is enough to support my argument and I don't need to bring the validity of the accusation into it: The refutation alone, that nobody would know who had downloaded porn even if it had happened, implies that this is a shared network account and it was being used to log in to desktop sessions.