It might also be aimed at (and hopefully made by) young people who are often very concerned with their sexuality, even before they have enough practical experience and /or self knowledge to know if they’re sexually attracted to anyone.

I didn’t recognize my first crush on a girl until over a decade later, because it was different from my crushes on boys. I thought I just admired her a lot. I had gotten to second base at least with half a dozen of my female friends before I thought I might be into girls (I was not especially self-aware). Hell, I lost my virginity to a girl and didn’t realize it until years later. I could see this being a list for people like me, who are somehow missing the obvious.