Complex sentence: Since the probability that the user's jondo ultimately submits the request is 1/n where n is the size of the crowd when the path was created.Thus We learn that the probability that the eavesdropper learns the identity of the receiver decreases as a function of crowd size.
Split into simpler sentences: Since the probability that the user's jondo ultimately submits the request is 1/n where n is the size of the crowd when the path was created. Thus we learn that the probability that the eavesdropper learns the identity of the receiver decreases as a function of crowd size.