I'll start. My younger cousins all loved it a year ago. And when I visited them, the youngest one had her FNaF books everywhere, plushies, talked about it all the time, and played FNaF songs. She played "We Don't Bite" while we were all washing dishes. I loved it, so I looked it up on Spotify.
I proceeded to find the entire All Five Nights album and listen to the whole effing thing.
I eventually looked up the actual game, was terrified, and stayed away for a few months. Then, I had an urge to hear "You Belong Here" again, so I looked it up on YT. That spiraled off into many, many FNaF songs by different artists, which spiraled off into playthroughs by Markiplier and Special Edd, through all of which which I learned the lore, and here I am!