It's quite the experiance to have a mutual who dives head first into a new fandom. Over night, you're boards gets flooded by 40+ posts. fanart, gifs, quotes, meta. During the next days, there are 200+ more posts, they make up 80% of your dash. You learn SO MUCH about this fandom, the story arcs, the characters, the deeper psychology behind it all, and it's fantastic.
The only thing you DON'T learn is what the source material is called. š