system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] Besides Dumbledore and the main trio, who knew that Aberforth was the bartender of The Hog’s Head?
gpt
Everyone who was polite enough to ask his name. It wasn't a secret. And given the amount of help he provided to Neville and the others bunking in the Room of Requirement, it likely became common knowledge at the school too.