It might not have been the smartest thing to do, security wise, but Cloud wanted help. He posted the message in good faith and for the time being he was being rewarded. If there were any enemies lurking about, they hadn't done anything to him yet.

Kaji winds up having to wait a few minutes, but Cloud opens the door partway and peers out. He doesn't exactly recognize the man in front of him apart from him being another one of the Heroes. "Can I help you?"