What is the meaning of Aisha's statement: "The Messenger did not increase in Ramadan or in any other month"?

Question:
Aisha's hadith: "The Messenger did not increase in Ramadan, nor in any month other than Ramadan, beyond eleven rak'ahs"?

Answer:
This means generally speaking, otherwise it is established from him (peace and blessings be upon him) that he prayed thirteen rak'ahs, and it is established from him that he performed witr with nine, with seven, and with five, falling short of eleven.

Question: Did he not increase ... in Ramadan, nor in any month other than Ramadan?

Answer: The intended meaning is that generally speaking, she is among those who narrated that he prayed thirteen, meaning generally eleven, otherwise he might increase beyond that and pray thirteen, and he might decrease and pray nine, seven, and five - (peace and blessings be upon him) - and three.

Question: Is it possible to stand in prayer and pray eight rak'ahs?

Answer: If he prays eight rak'ahs and performs witr with three, or prays ten and performs witr with three; this is good, or if he prays less than that, or more, the matter is broad.