Rules:
You can only guess once per riddle (doesn't apply to five-riddle specials)
A new riddle is posted someday at 9:40 am PST
The first person to answer correctly will get a point to their house
You can only score three points every week (resets Sunday)
If a house is winning by 5+ pts, the extra points they receive will be given to another house of the solver’s choice
Click here for more details (this leads to a document which is viewed anonymously)
Riddle:
I have been seen employing hyperbole
and many may laugh at my claims.
I face some serious competition
and I’ve profited from darkness.
Who am I?
Hints: the answer has a wiki page. The answer is a British wizard. We know his full name. It is unknown if he is still alive or what his blood status is. Look to London to find the answer. The answer is a shopkeeper, but doesn't own a bookstore.
The answer is not in the MS, CC, the companion books, Pottermore, a video game or the FB movies. The answer only appeared in one of the Main Series movies from the first half, namely PS. Only his name appeared, not the answer himself.
This character is closely tied to someone outside the Wizarding World. That person also fits the riddle. That person is an American man.
He employed hyperbole to make life better for himself, but I'm not sure how succesful that was.
The claims are connected to the hyperbole in line 1. The claims are related to magic and are generally optimistic.
The answer has faced competition and likely still is. This competition is mostly just one man. You could say that it was a competition of skill, and the other was apparently better than the answer. The competitor has a wiki page and it is much longer than the answer's. He has a very old store.
The darkness isn't really anything tangible. It was created by magic. I'd say the profit was mostly monetary. The answer wasn't responsible for the darkness.
Leaderboard:
Ravenclaw: 34
Gryffindor: 33
Hufflepuff: 5
Slytherin: 5
Since I do not expect anyone to be able to guess this correctly without consulting the wiki, and multiple pages were used to write the riddle, you are allowed to search the wiki to your heart’s content.