sure whatever you wanna believe
Nah. You cannot believe something and that something also be true at the same time.
If you are asked what color is the sky you give the answer based on the color your eyes visually see the sky being. However if you answer "you believe it's
X color" that means you have doubted your answer since you have to rely on belief (feelings) than what you visually see (logic).
With that being said the hint is a game played called quiddich. The rule of the game is to score. The main selling point of the game is CATCHING THE SNITCH. I don't have to BELIEVE THAT since that's the actual rules of the game shown